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drm/i915: Avoid memory leak with more than 16 workarounds on a list 

I forgot to free the old list when growing past 16 entries.

Luckily, as much as I checked, none of the current platforms has more than
16 workarounds on a single list.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Fixes: 452420d22d ("drm/i915: Fuse per-context workaround handling with the common framework")
Reported-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20201113132510.2298483-1-tvrtko.ursulin@linux.intel.com
(cherry picked from commit 77c296966e)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
This commit is contained in:
Tvrtko Ursulin 2020-11-13 13:25:10 +00:00 committed by Rodrigo Vivi
parent 85a12d7eb8
commit 973dd87fa5
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/i915/gt/intel_workarounds.c
View File

@ -131,8 +131,10 @@ static void _wa_add(struct i915_wa_list *wal, const struct i915_wa *wa)
return; return;
} }
if (wal->list) if (wal->list) {
memcpy(list, wal->list, sizeof(*wa) * wal->count); memcpy(list, wal->list, sizeof(*wa) * wal->count);
kfree(wal->list);
}
wal->list = list; wal->list = list;
} }