linux.git/drivers/nvmem/core.c, branch v4.15

nvmem: set nvmem->owner to nvmem->dev->driver->owner if unset

2017-11-08T12:54:17+00:00

All nvmem drivers are supposed to set the owner field of struct
nvmem_config, but this matches nvmem->dev->driver->owner.

As far as I see in drivers/nvmem/ directory, all the drivers are
the case.  So, make nvmem_register() set the nvmem's owner to the
associated driver's owner unless nvmem_config sets otherwise.

Remove .owner settings in the drivers that are now redundant.

Signed-off-by: Masahiro Yamada 
Signed-off-by: Srinivas Kandagatla 
Signed-off-by: Greg Kroah-Hartman

Merge 4.14-rc5 into char-misc-next

2017-10-16T07:22:22+00:00

We need the fixes in here to resolve merge issues and for testing.

Signed-off-by: Greg Kroah-Hartman

nvmem: remove unneeded IS_ENABLED(CONFIG_NVMEM) conditional

2017-09-18T14:20:26+00:00

As you see in drivers/nvmem/Makefile, this C file is compiled only
when CONFIG_NVMEM is y or m.

So, IS_ENABLED(CONFIG_NVMEM) is always evaluated to 1 in this file.

Signed-off-by: Masahiro Yamada 
Signed-off-by: Srinivas Kandagatla 
Signed-off-by: Greg Kroah-Hartman

nvmem: remove inline in drivers/nvmem/core.c

2017-09-18T14:20:26+00:00

These two functions are defined in .c file, but called just once
(at least for now).  So, the compiler will fold them into their
callers even without the "inline" markers.

However, this kind of optimization should not be done by hand.
It is compiler's judge after all.

Signed-off-by: Masahiro Yamada 
Signed-off-by: Srinivas Kandagatla 
Signed-off-by: Greg Kroah-Hartman

nvmem: add missing of_node_put() in of_nvmem_cell_get()

2017-09-18T14:12:26+00:00

of_get_next_parent() increments the refcount of the returned node.
It should be put when done.

Signed-off-by: Masahiro Yamada 
Signed-off-by: Srinivas Kandagatla 
Signed-off-by: Greg Kroah-Hartman

nvmem: core: return EFBIG on out-of-range write

2017-09-18T14:12:26+00:00

When writing data that exceeds the nvmem size to a nvmem sysfs file
using the sh redirection operator >, the shell hangs, trying to
write the out-of-range bytes endlessly.

Fix the problem by returning EFBIG described in man 2 write.

Similar change was done for binary sysfs files on commit
0936896056365349afa867c16e9f9100a6707cbf

Signed-off-by: Guy Shapiro 
Cc: linux-api@vger.kernel.org
Signed-off-by: Srinivas Kandagatla 
Signed-off-by: Greg Kroah-Hartman

nvmem: core: remove unneeded NULL check

2017-08-28T15:33:23+00:00

"p" is the list iterator so it can't be NULL.  Static checkers complain
about this unnecessary check because we dereference the list iterator to
get the next item in the list so we'd be in trouble if it really was
NULL.  I have removed the check.

Signed-off-by: Dan Carpenter 
Signed-off-by: Srinivas Kandagatla 
Signed-off-by: Greg Kroah-Hartman

nvmem: core: Add nvmem_cell_read_u32

2017-08-28T15:33:23+00:00

This function does a quick and easy read of an u32 value without any
kind of resource management code on the consumer side.

Signed-off-by: Leonard Crestez 
Reviewed-by: Shawn Guo 
Signed-off-by: Srinivas Kandagatla 
Signed-off-by: Greg Kroah-Hartman

nvmem: Convert to using %pOF instead of full_name

2017-08-28T15:33:22+00:00

Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the full path string for each node.

Signed-off-by: Rob Herring 
Cc: Srinivas Kandagatla 
Signed-off-by: Srinivas Kandagatla 
Signed-off-by: Greg Kroah-Hartman

nvmem: core: add locking to nvmem_find_cell

2017-06-09T10:08:27+00:00

Adding entries to nvmem_cells and deleting entries from it is
protected by nvmem_cells_mutex. Therefore this mutex should
also protect iterating over the list.

Signed-off-by: Heiner Kallweit 
Signed-off-by: Srinivas Kandagatla 
Signed-off-by: Greg Kroah-Hartman