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Code Issues Releases Wiki Activity

drm/drm_file: fix use of uninitialized variable 

smatch reports:

drivers/gpu/drm/drm_file.c:967 drm_show_memory_stats() error: uninitialized symbol 'supported_status'.

'supported_status' is only set in one code path. I'm not familiar with
the code to say if that path will always be ran in real life, but
whether that is the case or not, I think it is good to initialize
'supported_status' to 0 to silence the warning (and possibly fix a bug).

Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231103-uninit-fixes-v2-1-c22b2444f5f5@ideasonboard.com
This commit is contained in:
Tomi Valkeinen 2023-11-03 15:14:03 +02:00
parent 28d3d06966
commit 1d3062fad9
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/drm_file.c
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@ -898,7 +898,7 @@ void drm_show_memory_stats(struct drm_printer *p, struct drm_file *file)
{
struct drm_gem_object *obj;
struct drm_memory_stats status = {};
enum drm_gem_object_status supported_status;
enum drm_gem_object_status supported_status = 0;
int id;
spin_lock(&file->table_lock);