media: platform: amd: use refcount_t instead of atomic_t

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We are using the refcnt variable for refcounting. Use the refcount_t
type instead, as it has support for saturation and underflow.

This also makes cocci happier, as it will fix the following warning:
./platform/amd/isp4/isp4_subdev.c:394:6-25: WARNING: atomic_dec_and_test variation before object free at line 395.

Fixes: 4c5feef6a6 ("media: platform: amd: Add isp4 fw and hw interface")
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Reviewed-by: Pratap Nirujogi <pratap.nirujogi@amd.com>
Reviewed-by: Bin Du <bin.du@amd.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>

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Ricardo Ribalda 2026-06-29 11:30:46 +00:00 • committed by Hans Verkuil

parent 6b8ff73412

commit 0baf8f4211

3 changed files with 4 additions and 4 deletions

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4

drivers/media/platform/amd/isp4/isp4_interface.c

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2

drivers/media/platform/amd/isp4/isp4_interface.h

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2

drivers/media/platform/amd/isp4/isp4_subdev.c

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