staging: gpib: Avoid plain integers as NULL pointers

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A number of drivers were comparing request_region() with 0,
others were passing 0 instead of NULL as a pointer argument.

This led to the following sparse warning, for example:

cb7210/cb7210.c:1043:72: warning: Using plain integer as NULL pointer

Use !request_region() to test for NULL return and use NULL instead
of 0 as pointer parameter.

Signed-off-by: Dave Penkler <dpenkler@gmail.com>
Link: https://lore.kernel.org/r/20250114165403.16410-4-dpenkler@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Dave Penkler 2025-01-14 17:54:02 +01:00 • committed by Greg Kroah-Hartman

parent 8e7ff4e7a2

commit b3beeeee27

7 changed files with 12 additions and 12 deletions

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6

drivers/staging/gpib/cb7210/cb7210.c

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2

drivers/staging/gpib/common/gpib_os.c

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2

drivers/staging/gpib/common/iblib.c

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4

drivers/staging/gpib/gpio/gpib_bitbang.c

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4

drivers/staging/gpib/ines/ines_gpib.c

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2

drivers/staging/gpib/pc2/pc2_gpib.c

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4

drivers/staging/gpib/tnt4882/tnt4882_gpib.c

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