drm/cirrus: NULL-check pipe->plane.state->fb in cirrus_pipe_update()

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[ Upstream commit 7245e629dc ]

After having been compared to NULL value at cirrus.c:455, pointer
'pipe->plane.state->fb' is passed as 1st parameter in call to function
'cirrus_fb_blit_rect' at cirrus.c:461, where it is dereferenced at
cirrus.c:316.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

v2:
	* aligned commit message to line-length limits

Signed-off-by: Alexandr Sapozhnikov <alsp705@gmail.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230215171549.16305-1-alsp705@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Alexandr Sapozhnikov 2023-02-15 20:15:49 +03:00 • committed by Greg Kroah-Hartman

parent 2fb0a9a7fb

commit 93b3060e83

1 changed files with 1 additions and 1 deletions

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drivers/gpu/drm/tiny/cirrus.c

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