linux-stable.git/arch, branch v4.14.72

ARM: hisi: check of_iomap and fix missing of_node_put

2018-09-26T06:38:10+00:00

[ Upstream commit 81646a3d39ef14749301374a3a0b8311384cd412 ]

of_find_compatible_node() returns a device node with refcount incremented
and thus needs an explicit of_node_put(). Further relying on an unchecked
of_iomap() which can return NULL is problematic here, after all ctrl_base
is critical enough for hix5hd2_set_cpu() to call BUG() if not available
so a check seems mandated here.

Signed-off-by: Nicholas Mc Guire 
0002 Fixes: commit 06cc5c1d4d73 ("ARM: hisi: enable hix5hd2 SoC")
Signed-off-by: Wei Xu 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

ARM: hisi: fix error handling and missing of_node_put

2018-09-26T06:38:10+00:00

[ Upstream commit 9f30b5ae0585ca5234fe979294b8f897299dec99 ]

of_iomap() can return NULL which seems critical here and thus should be
explicitly flagged so that the cause of system halting can be understood.
As of_find_compatible_node() is returning a device node with refcount
incremented it must be explicitly decremented here.

Signed-off-by: Nicholas Mc Guire 
Fixes: commit 7fda91e73155 ("ARM: hisi: enable smp for HiP01")
Signed-off-by: Wei Xu 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

ARM: hisi: handle of_iomap and fix missing of_node_put

2018-09-26T06:38:10+00:00

[ Upstream commit d396cb185c0337aae5664b250cdd9a73f6eb1503 ]

Relying on an unchecked of_iomap() which can return NULL is problematic
here, an explicit check seems mandatory. Also the call to
of_find_compatible_node() returns a device node with refcount incremented
therefor an explicit of_node_put() is needed here.

Signed-off-by: Nicholas Mc Guire 
Fixes: commit 22bae4290457 ("ARM: hi3xxx: add hotplug support")
Signed-off-by: Wei Xu 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

MIPS: loongson64: cs5536: Fix PCI_OHCI_INT_REG reads

2018-09-26T06:38:10+00:00

[ Upstream commit cd87668d601f622e0ebcfea4f78d116d5f572f4d ]

The PCI_OHCI_INT_REG case in pci_ohci_read_reg() contains the following
if statement:

  if ((lo & 0x00000f00) == CS5536_USB_INTR)

CS5536_USB_INTR expands to the constant 11, which gives us the following
condition which can never evaluate true:

  if ((lo & 0xf00) == 11)

At least when using GCC 8.1.0 this falls foul of the tautoligcal-compare
warning, and since the code is built with the -Werror flag the build
fails.

Fix this by shifting lo right by 8 bits in order to match the
corresponding PCI_OHCI_INT_REG case in pci_ohci_write_reg().

Signed-off-by: Paul Burton 
Patchwork: https://patchwork.linux-mips.org/patch/19861/
Cc: Huacai Chen 
Cc: James Hogan 
Cc: Ralf Baechle 
Cc: linux-mips@linux-mips.org
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

KVM: PPC: Book3S HV: Add of_node_put() in success path

2018-09-26T06:38:09+00:00

[ Upstream commit 51eaa08f029c7343df846325d7cf047be8b96e81 ]

The call to of_find_compatible_node() is returning a pointer with
incremented refcount so it must be explicitly decremented after the
last use. As here it is only being used for checking of node presence
but the result is not actually used in the success path it can be
dropped immediately.

Signed-off-by: Nicholas Mc Guire 
Fixes: commit f725758b899f ("KVM: PPC: Book3S HV: Use OPAL XICS emulation on POWER9")
Signed-off-by: Paul Mackerras 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

arm64: dts: uniphier: Add missing cooling device properties for CPUs

2018-09-26T06:38:09+00:00

[ Upstream commit af0e09d0c6762e486b0eb5cc4737396964c34fad ]

The cooling device properties, like "#cooling-cells" and
"dynamic-power-coefficient", should either be present for all the CPUs
of a cluster or none. If these are present only for a subset of CPUs of
a cluster then things will start falling apart as soon as the CPUs are
brought online in a different order. For example, this will happen
because the operating system looks for such properties in the CPU node
it is trying to bring up, so that it can register a cooling device.

Add such missing properties.

Signed-off-by: Viresh Kumar 
Signed-off-by: Masahiro Yamada 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

x86/EISA: Don't probe EISA bus for Xen PV guests

2018-09-26T06:38:08+00:00

commit 6a92b11169a65b3f8cc512c75a252cbd0d096ba0 upstream.

For unprivileged Xen PV guests this is normal memory and ioremap will
not be able to properly map it.

While at it, since ioremap may return NULL, add a test for pointer's
validity.

Reported-by: Andy Smith 
Signed-off-by: Boris Ostrovsky 
Signed-off-by: Thomas Gleixner 
Cc: hpa@zytor.com
Cc: xen-devel@lists.xenproject.org
Cc: jgross@suse.com
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20180911195538.23289-1-boris.ostrovsky@oracle.com
Signed-off-by: Greg Kroah-Hartman

xtensa: ISS: don't allocate memory in platform_setup

2018-09-26T06:38:08+00:00

commit ef439d49e0bfb26cd5f03c88b4cb7cc9073ed30c upstream.

Memory allocator is not initialized at that point yet, use static array
instead.

Cc: stable@vger.kernel.org
Signed-off-by: Max Filippov 
Signed-off-by: Greg Kroah-Hartman

s390/crypto: Fix return code checking in cbc_paes_crypt()

2018-09-26T06:38:06+00:00

commit b81126e01a8c6048249955feea46c8217ebefa91 upstream.

The return code of cpacf_kmc() is less than the number of
bytes to process in case of an error, not greater.
The crypt routines for the other cipher modes already have
this correctly.

Cc: stable@vger.kernel.org # v4.11+
Fixes: 279378430768 ("s390/crypt: Add protected key AES module")
Signed-off-by: Ingo Franzki 
Acked-by: Harald Freudenberger 
Signed-off-by: Martin Schwidefsky 
Signed-off-by: Greg Kroah-Hartman

x86/mm/pti: Add an overflow check to pti_clone_pmds()

2018-09-26T06:38:05+00:00

[ Upstream commit 935232ce28dfabff1171e5a7113b2d865fa9ee63 ]

The addr counter will overflow if the last PMD of the address space is
cloned, resulting in an endless loop.

Check for that and bail out of the loop when it happens.

Signed-off-by: Joerg Roedel 
Signed-off-by: Thomas Gleixner 
Tested-by: Pavel Machek 
Cc: "H . Peter Anvin" 
Cc: linux-mm@kvack.org
Cc: Linus Torvalds 
Cc: Andy Lutomirski 
Cc: Dave Hansen 
Cc: Josh Poimboeuf 
Cc: Juergen Gross 
Cc: Peter Zijlstra 
Cc: Borislav Petkov 
Cc: Jiri Kosina 
Cc: Boris Ostrovsky 
Cc: Brian Gerst 
Cc: David Laight 
Cc: Denys Vlasenko 
Cc: Eduardo Valentin 
Cc: Greg KH 
Cc: Will Deacon 
Cc: aliguori@amazon.com
Cc: daniel.gruss@iaik.tugraz.at
Cc: hughd@google.com
Cc: keescook@google.com
Cc: Andrea Arcangeli 
Cc: Waiman Long 
Cc: "David H . Gutteridge" 
Cc: joro@8bytes.org
Link: https://lkml.kernel.org/r/1531906876-13451-25-git-send-email-joro@8bytes.org
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman