linux-stable.git/drivers/misc/eeprom, branch v5.15.78 Linux kernel stable tree eeprom: idt_89hpesx: uninitialized data in idt_dbgfs_csr_write() 2022-08-17T12:23:52+00:00 Dan Carpenter dan.carpenter@oracle.com 2022-07-08T13:46:38+00:00 3f2989ed9570853aaf2b35edf96c07827a8b6bc0 [ Upstream commit 71d46f1ff2212ced4852c7e77c5176382a1bdcec ] The simple_write_to_buffer() function will return positive/success if it is able to write a single byte anywhere within the buffer. However that potentially leaves a lot of the buffer uninitialized. In this code it's better to return 0 if the offset is non-zero. This code is not written to support partial writes. And then return -EFAULT if the buffer is not completely initialized. Fixes: cfad6425382e ("eeprom: Add IDT 89HPESx EEPROM/CSR driver") Reviewed-by: Serge Semin <fancer.lancer@gmail.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/Ysg1Pu/nzSMe3r1q@kili Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit 71d46f1ff2212ced4852c7e77c5176382a1bdcec ]

The simple_write_to_buffer() function will return positive/success if it
is able to write a single byte anywhere within the buffer.  However that
potentially leaves a lot of the buffer uninitialized.

In this code it's better to return 0 if the offset is non-zero.  This
code is not written to support partial writes.  And then return -EFAULT
if the buffer is not completely initialized.

Fixes: cfad6425382e ("eeprom: Add IDT 89HPESx EEPROM/CSR driver")
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/Ysg1Pu/nzSMe3r1q@kili
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
eeprom: at25: Use DMA safe buffers 2022-05-09T07:14:44+00:00 Christophe Leroy christophe.leroy@csgroup.eu 2022-03-23T10:51:55+00:00 80c71d76e88ab3cdbb76e4a2e65828048f1114a7 commit 5b47b751b760ee1c74a51660fd096aa148a362cd upstream. Reading EEPROM fails with following warning: [ 16.357496] ------------[ cut here ]------------ [ 16.357529] fsl_spi b01004c0.spi: rejecting DMA map of vmalloc memory [ 16.357698] WARNING: CPU: 0 PID: 371 at include/linux/dma-mapping.h:326 fsl_spi_cpm_bufs+0x2a0/0x2d8 [ 16.357775] CPU: 0 PID: 371 Comm: od Not tainted 5.16.11-s3k-dev-01743-g19beecbfe9d6-dirty #109 [ 16.357806] NIP: c03fbc9c LR: c03fbc9c CTR: 00000000 [ 16.357825] REGS: e68d9b20 TRAP: 0700 Not tainted (5.16.11-s3k-dev-01743-g19beecbfe9d6-dirty) [ 16.357849] MSR: 00029032 <EE,ME,IR,DR,RI> CR: 24002282 XER: 00000000 [ 16.357931] [ 16.357931] GPR00: c03fbc9c e68d9be0 c26d06a0 00000039 00000001 c0d36364 c0e96428 00000027 [ 16.357931] GPR08: 00000001 00000000 00000023 3fffc000 24002282 100d3dd6 100a2ffc 00000000 [ 16.357931] GPR16: 100cd280 100b0000 00000000 aff54f7e 100d0000 100d0000 00000001 100cf328 [ 16.357931] GPR24: 100cf328 00000000 00000003 e68d9e30 c156b410 e67ab4c0 e68d9d38 c24ab278 [ 16.358253] NIP [c03fbc9c] fsl_spi_cpm_bufs+0x2a0/0x2d8 [ 16.358292] LR [c03fbc9c] fsl_spi_cpm_bufs+0x2a0/0x2d8 [ 16.358325] Call Trace: [ 16.358336] [e68d9be0] [c03fbc9c] fsl_spi_cpm_bufs+0x2a0/0x2d8 (unreliable) [ 16.358388] [e68d9c00] [c03fcb44] fsl_spi_bufs.isra.0+0x94/0x1a0 [ 16.358436] [e68d9c20] [c03fd970] fsl_spi_do_one_msg+0x254/0x3dc [ 16.358483] [e68d9cb0] [c03f7e50] __spi_pump_messages+0x274/0x8a4 [ 16.358529] [e68d9ce0] [c03f9d30] __spi_sync+0x344/0x378 [ 16.358573] [e68d9d20] [c03fb52c] spi_sync+0x34/0x60 [ 16.358616] [e68d9d30] [c03b4dec] at25_ee_read+0x138/0x1a8 [ 16.358667] [e68d9e50] [c04a8fb8] bin_attr_nvmem_read+0x98/0x110 [ 16.358725] [e68d9e60] [c0204b14] kernfs_fop_read_iter+0xc0/0x1fc [ 16.358774] [e68d9e80] [c0168660] vfs_read+0x284/0x410 [ 16.358821] [e68d9f00] [c016925c] ksys_read+0x6c/0x11c [ 16.358863] [e68d9f30] [c00160e0] ret_from_syscall+0x0/0x28 ... [ 16.359608] ---[ end trace a4ce3e34afef0cb5 ]--- [ 16.359638] fsl_spi b01004c0.spi: unable to map tx dma This is due to the AT25 driver using buffers on stack, which is not possible with CONFIG_VMAP_STACK. As mentionned in kernel Documentation (Documentation/spi/spi-summary.rst): - Follow standard kernel rules, and provide DMA-safe buffers in your messages. That way controller drivers using DMA aren't forced to make extra copies unless the hardware requires it (e.g. working around hardware errata that force the use of bounce buffering). Modify the driver to use a buffer located in the at25 device structure which is allocated via kmalloc during probe. Protect writes in this new buffer with the driver's mutex. Fixes: b587b13a4f67 ("[PATCH] SPI eeprom driver") Cc: stable <stable@kernel.org> Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Link: https://lore.kernel.org/r/230a9486fc68ea0182df46255e42a51099403642.1648032613.git.christophe.leroy@csgroup.eu Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 5b47b751b760ee1c74a51660fd096aa148a362cd upstream.

Reading EEPROM fails with following warning:

[   16.357496] ------------[ cut here ]------------
[   16.357529] fsl_spi b01004c0.spi: rejecting DMA map of vmalloc memory
[   16.357698] WARNING: CPU: 0 PID: 371 at include/linux/dma-mapping.h:326 fsl_spi_cpm_bufs+0x2a0/0x2d8
[   16.357775] CPU: 0 PID: 371 Comm: od Not tainted 5.16.11-s3k-dev-01743-g19beecbfe9d6-dirty #109
[   16.357806] NIP:  c03fbc9c LR: c03fbc9c CTR: 00000000
[   16.357825] REGS: e68d9b20 TRAP: 0700   Not tainted  (5.16.11-s3k-dev-01743-g19beecbfe9d6-dirty)
[   16.357849] MSR:  00029032 <EE,ME,IR,DR,RI>  CR: 24002282  XER: 00000000
[   16.357931]
[   16.357931] GPR00: c03fbc9c e68d9be0 c26d06a0 00000039 00000001 c0d36364 c0e96428 00000027
[   16.357931] GPR08: 00000001 00000000 00000023 3fffc000 24002282 100d3dd6 100a2ffc 00000000
[   16.357931] GPR16: 100cd280 100b0000 00000000 aff54f7e 100d0000 100d0000 00000001 100cf328
[   16.357931] GPR24: 100cf328 00000000 00000003 e68d9e30 c156b410 e67ab4c0 e68d9d38 c24ab278
[   16.358253] NIP [c03fbc9c] fsl_spi_cpm_bufs+0x2a0/0x2d8
[   16.358292] LR [c03fbc9c] fsl_spi_cpm_bufs+0x2a0/0x2d8
[   16.358325] Call Trace:
[   16.358336] [e68d9be0] [c03fbc9c] fsl_spi_cpm_bufs+0x2a0/0x2d8 (unreliable)
[   16.358388] [e68d9c00] [c03fcb44] fsl_spi_bufs.isra.0+0x94/0x1a0
[   16.358436] [e68d9c20] [c03fd970] fsl_spi_do_one_msg+0x254/0x3dc
[   16.358483] [e68d9cb0] [c03f7e50] __spi_pump_messages+0x274/0x8a4
[   16.358529] [e68d9ce0] [c03f9d30] __spi_sync+0x344/0x378
[   16.358573] [e68d9d20] [c03fb52c] spi_sync+0x34/0x60
[   16.358616] [e68d9d30] [c03b4dec] at25_ee_read+0x138/0x1a8
[   16.358667] [e68d9e50] [c04a8fb8] bin_attr_nvmem_read+0x98/0x110
[   16.358725] [e68d9e60] [c0204b14] kernfs_fop_read_iter+0xc0/0x1fc
[   16.358774] [e68d9e80] [c0168660] vfs_read+0x284/0x410
[   16.358821] [e68d9f00] [c016925c] ksys_read+0x6c/0x11c
[   16.358863] [e68d9f30] [c00160e0] ret_from_syscall+0x0/0x28
...
[   16.359608] ---[ end trace a4ce3e34afef0cb5 ]---
[   16.359638] fsl_spi b01004c0.spi: unable to map tx dma

This is due to the AT25 driver using buffers on stack, which is not
possible with CONFIG_VMAP_STACK.

As mentionned in kernel Documentation (Documentation/spi/spi-summary.rst):

  - Follow standard kernel rules, and provide DMA-safe buffers in
    your messages.  That way controller drivers using DMA aren't forced
    to make extra copies unless the hardware requires it (e.g. working
    around hardware errata that force the use of bounce buffering).

Modify the driver to use a buffer located in the at25 device structure
which is allocated via kmalloc during probe.

Protect writes in this new buffer with the driver's mutex.

Fixes: b587b13a4f67 ("[PATCH] SPI eeprom driver")
Cc: stable <stable@kernel.org>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Link: https://lore.kernel.org/r/230a9486fc68ea0182df46255e42a51099403642.1648032613.git.christophe.leroy@csgroup.eu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
eeprom: ee1004: limit i2c reads to I2C_SMBUS_BLOCK_MAX 2022-02-16T11:56:33+00:00 Jonas Malaco jonas@protocubo.io 2022-02-03T16:49:52+00:00 9a5f471ae380f9fcb9756d453c12ca1f8595a93c commit c0689e46be23160d925dca95dfc411f1a0462708 upstream. Commit effa453168a7 ("i2c: i801: Don't silently correct invalid transfer size") revealed that ee1004_eeprom_read() did not properly limit how many bytes to read at once. In particular, i2c_smbus_read_i2c_block_data_or_emulated() takes the length to read as an u8. If count == 256 after taking into account the offset and page boundary, the cast to u8 overflows. And this is common when user space tries to read the entire EEPROM at once. To fix it, limit each read to I2C_SMBUS_BLOCK_MAX (32) bytes, already the maximum length i2c_smbus_read_i2c_block_data_or_emulated() allows. Fixes: effa453168a7 ("i2c: i801: Don't silently correct invalid transfer size") Cc: stable@vger.kernel.org Reviewed-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Jonas Malaco <jonas@protocubo.io> Link: https://lore.kernel.org/r/20220203165024.47767-1-jonas@protocubo.io Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit c0689e46be23160d925dca95dfc411f1a0462708 upstream.

Commit effa453168a7 ("i2c: i801: Don't silently correct invalid transfer
size") revealed that ee1004_eeprom_read() did not properly limit how
many bytes to read at once.

In particular, i2c_smbus_read_i2c_block_data_or_emulated() takes the
length to read as an u8.  If count == 256 after taking into account the
offset and page boundary, the cast to u8 overflows.  And this is common
when user space tries to read the entire EEPROM at once.

To fix it, limit each read to I2C_SMBUS_BLOCK_MAX (32) bytes, already
the maximum length i2c_smbus_read_i2c_block_data_or_emulated() allows.

Fixes: effa453168a7 ("i2c: i801: Don't silently correct invalid transfer size")
Cc: stable@vger.kernel.org
Reviewed-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jonas Malaco <jonas@protocubo.io>
Link: https://lore.kernel.org/r/20220203165024.47767-1-jonas@protocubo.io
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
misc: at25: Make driver OF independent again 2022-01-27T10:04:09+00:00 Andy Shevchenko andriy.shevchenko@linux.intel.com 2021-11-25T21:27:27+00:00 356b4ed3ea706d97d135884c35818bf80b9ea7f8 [ Upstream commit 5b557298d7d09cce04e0565a535fbca63661724a ] The commit f60e7074902a ("misc: at25: Make use of device property API") made a good job by enabling the driver for non-OF platforms, but the recent commit 604288bc6196 ("nvmem: eeprom: at25: fix type compiler warnings") brought that back. Restore greatness of the driver once again. Fixes: eab61fb1cc2e ("nvmem: eeprom: at25: fram discovery simplification") Fixes: fd307a4ad332 ("nvmem: prepare basics for FRAM support") Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20211125212729.86585-2-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit 5b557298d7d09cce04e0565a535fbca63661724a ]

The commit f60e7074902a ("misc: at25: Make use of device property API")
made a good job by enabling the driver for non-OF platforms, but the
recent commit 604288bc6196 ("nvmem: eeprom: at25: fix type compiler warnings")
brought that back.

Restore greatness of the driver once again.

Fixes: eab61fb1cc2e ("nvmem: eeprom: at25: fram discovery simplification")
Fixes: fd307a4ad332 ("nvmem: prepare basics for FRAM support")
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211125212729.86585-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
nvmem: eeprom: at25: fix FRAM byte_len 2021-12-14T09:57:22+00:00 Ralph Siemsen ralph.siemsen@linaro.org 2021-11-08T18:16:27+00:00 5bff8dff8e21191c643720b7039da55371809ab7 commit 9a626577398c24ecab63c0a684436c8928092367 upstream. Commit fd307a4ad332 ("nvmem: prepare basics for FRAM support") added support for FRAM devices such as the Cypress FM25V. During testing, it was found that the FRAM detects properly, however reads and writes fail. Upon further investigation, two problem were found in at25_probe() routine. 1) In the case of an FRAM device without platform data, eg. fram == true && spi->dev.platform_data == NULL the stack local variable "struct spi_eeprom chip" is not initialized fully, prior to being copied into at25->chip. The chip.flags field in particular can cause problems. 2) The byte_len of FRAM is computed from its ID register, and is stored into the stack local "struct spi_eeprom chip" structure. This happens after the same structure has been copied into at25->chip. As a result, at25->chip.byte_len does not contain the correct length of the device. In turn this can cause checks at beginning of at25_ee_read() to fail (or equally, it could allow reads beyond the end of the device length). Fix both of these issues by eliminating the on-stack struct spi_eeprom. Instead use the one inside at25_data structure, which starts of zeroed. Fixes: fd307a4ad332 ("nvmem: prepare basics for FRAM support") Cc: stable <stable@vger.kernel.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org> Link: https://lore.kernel.org/r/20211108181627.645638-1-ralph.siemsen@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 9a626577398c24ecab63c0a684436c8928092367 upstream.

Commit fd307a4ad332 ("nvmem: prepare basics for FRAM support") added
support for FRAM devices such as the Cypress FM25V. During testing, it
was found that the FRAM detects properly, however reads and writes fail.
Upon further investigation, two problem were found in at25_probe() routine.

1) In the case of an FRAM device without platform data, eg.
       fram == true && spi->dev.platform_data == NULL
the stack local variable "struct spi_eeprom chip" is not initialized
fully, prior to being copied into at25->chip. The chip.flags field in
particular can cause problems.

2) The byte_len of FRAM is computed from its ID register, and is stored
into the stack local "struct spi_eeprom chip" structure. This happens
after the same structure has been copied into at25->chip. As a result,
at25->chip.byte_len does not contain the correct length of the device.
In turn this can cause checks at beginning of at25_ee_read() to fail
(or equally, it could allow reads beyond the end of the device length).

Fix both of these issues by eliminating the on-stack struct spi_eeprom.
Instead use the one inside at25_data structure, which starts of zeroed.

Fixes: fd307a4ad332 ("nvmem: prepare basics for FRAM support")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org>
Link: https://lore.kernel.org/r/20211108181627.645638-1-ralph.siemsen@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
eeprom: 93xx46: fix MODULE_DEVICE_TABLE 2021-10-15T08:54:02+00:00 Arnd Bergmann arnd@arndb.de 2021-10-14T15:37:18+00:00 f42752729e2068a92c7d8b576d0dbbc9c1464149 The newly added SPI device ID table does not work because the entry is incorrectly copied from the OF device table. During build testing, this shows as a compile failure when building it as a loadable module: drivers/misc/eeprom/eeprom_93xx46.c:424:1: error: redefinition of '__mod_of__eeprom_93xx46_of_table_device_table' MODULE_DEVICE_TABLE(of, eeprom_93xx46_of_table); Change the entry to refer to the correct symbol. Fixes: 137879f7ff23 ("eeprom: 93xx46: Add SPI device ID table") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20211014153730.3821376-1-arnd@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
The newly added SPI device ID table does not work because the
entry is incorrectly copied from the OF device table.

During build testing, this shows as a compile failure when building
it as a loadable module:

drivers/misc/eeprom/eeprom_93xx46.c:424:1: error: redefinition of '__mod_of__eeprom_93xx46_of_table_device_table'
MODULE_DEVICE_TABLE(of, eeprom_93xx46_of_table);

Change the entry to refer to the correct symbol.

Fixes: 137879f7ff23 ("eeprom: 93xx46: Add SPI device ID table")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20211014153730.3821376-1-arnd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
eeprom: 93xx46: Add SPI device ID table 2021-10-05T14:10:15+00:00 Mark Brown broonie@kernel.org 2021-09-22T18:40:48+00:00 137879f7ff23c635d2c6b2e43f4b39e2d305c3e2 Currently autoloading for SPI devices does not use the DT ID table, it uses SPI modalises. Supporting OF modalises is going to be difficult if not impractical, an attempt was made but has been reverted, so ensure that module autoloading works for this driver by adding a SPI device ID table. Fixes: 96c8395e2166 ("spi: Revert modalias changes") Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20210922184048.34770-1-broonie@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Currently autoloading for SPI devices does not use the DT ID table, it uses
SPI modalises. Supporting OF modalises is going to be difficult if not
impractical, an attempt was made but has been reverted, so ensure that
module autoloading works for this driver by adding a SPI device ID table.

Fixes: 96c8395e2166 ("spi: Revert modalias changes")
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20210922184048.34770-1-broonie@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
eeprom: at25: Add SPI ID table 2021-10-05T14:10:12+00:00 Mark Brown broonie@kernel.org 2021-09-23T17:24:53+00:00 9e2cd444909b3c93f5cc83463d12291e3e0f990b Currently autoloading for SPI devices does not use the DT ID table, it uses SPI modalises. Supporting OF modalises is going to be difficult if not impractical, an attempt was made but has been reverted, so ensure that module autoloading works for this driver by adding an id_table listing the SPI IDs for everything. Fixes: 96c8395e2166 ("spi: Revert modalias changes") Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20210923172453.4921-1-broonie@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Currently autoloading for SPI devices does not use the DT ID table, it uses
SPI modalises. Supporting OF modalises is going to be difficult if not
impractical, an attempt was made but has been reverted, so ensure that
module autoloading works for this driver by adding an id_table listing the
SPI IDs for everything.

Fixes: 96c8395e2166 ("spi: Revert modalias changes")
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20210923172453.4921-1-broonie@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Merge tag 'at24-fixes-for-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-current 2021-07-20T20:28:56+00:00 Wolfram Sang wsa@kernel.org 2021-07-20T20:28:56+00:00 a750bff5b99e4097de2fa0cf00b78abb98a3c0d2 at24 fixes for v5.14 - fix a problem with repeating labels not getting a device id 
at24 fixes for v5.14

- fix a problem with repeating labels not getting a device id
misc: eeprom: at24: Always append device id even if label property is set. 2021-07-01T16:49:37+00:00 Jérôme Glisse jglisse@redhat.com 2021-07-01T15:28:25+00:00 c36748ac545421d94a5091c754414c0f3664bf10 We need to append device id even if eeprom have a label property set as some platform can have multiple eeproms with same label and we can not register each of those with same label. Failing to register those eeproms trigger cascade failures on such platform (system is no longer working). This fix regression on such platform introduced with 4e302c3b568e Reported-by: Alexander Fomichev <fomichev.ru@gmail.com> Fixes: 4e302c3b568e ("misc: eeprom: at24: fix NVMEM name with custom AT24 device name") Cc: stable@vger.kernel.org Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> 
We need to append device id even if eeprom have a label property set as some
platform can have multiple eeproms with same label and we can not register
each of those with same label. Failing to register those eeproms trigger
cascade failures on such platform (system is no longer working).

This fix regression on such platform introduced with 4e302c3b568e

Reported-by: Alexander Fomichev <fomichev.ru@gmail.com>
Fixes: 4e302c3b568e ("misc: eeprom: at24: fix NVMEM name with custom AT24 device name")
Cc: stable@vger.kernel.org
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>