drm/xe/eustall: Fix a possible pointer dereference after free

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If devm_add_action_or_reset() isn't successful, xe_eu_stall_fini()
is invoked. So, unsuccessful return from devm_add_action_or_reset()
shouldn't dereference gt->eu_stall as xe_eu_stall_fini() already
frees it. Fix this issue.

Fixes: 9a0b11d4cf ("drm/xe/eustall: Add support to init, enable and disable EU stall sampling")
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/eae49a414a7314921108e0388810aaee6261ad92.1741800396.git.harish.chegondi@intel.com
(cherry picked from commit 278469ff56)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

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Harish Chegondi 2025-03-12 10:31:20 -07:00 • committed by Lucas De Marchi

parent 5da39dce1f

commit 488975c2d3

1 changed files with 1 additions and 7 deletions

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drivers/gpu/drm/xe/xe_eu_stall.c

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