diff options
| author | Umesh Nerlige Ramappa <[email protected]> | 2023-10-20 08:24:41 -0700 |
|---|---|---|
| committer | Rodrigo Vivi <[email protected]> | 2023-10-25 08:44:30 -0400 |
| commit | 4cbed7702eb775cca22fff6827a549092cb59f61 (patch) | |
| tree | 6eeb445b7401b6ff1479163eb5d44d68b8f38ed6 /arch/x86/entry/common.c | |
| parent | 78cc55e0b64c820673a796635daf82c7eadfe152 (diff) | |
drm/i915/pmu: Check if pmu is closed before stopping event
When the driver unbinds, pmu is unregistered and i915->uabi_engines is
set to RB_ROOT. Due to this, when i915 PMU tries to stop the engine
events, it issues a warn_on because engine lookup fails.
All perf hooks are taking care of this using a pmu->closed flag that is
set when PMU unregisters. The stop event seems to have been left out.
Check for pmu->closed in pmu_event_stop as well.
Based on discussion here -
https://patchwork.freedesktop.org/patch/492079/?series=105790&rev=2
v2: s/is/if/ in commit title
v3: Add fixes tag and cc stable
Cc: <[email protected]> # v5.11+
Fixes: b00bccb3f0bb ("drm/i915/pmu: Handle PCI unbind")
Signed-off-by: Umesh Nerlige Ramappa <[email protected]>
Reviewed-by: Tvrtko Ursulin <[email protected]>
Reviewed-by: Andi Shyti <[email protected]>
Signed-off-by: Andi Shyti <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit 31f6a06f0c543b43a38fab10f39e5fc45ad62aa2)
Signed-off-by: Rodrigo Vivi <[email protected]>
Diffstat (limited to 'arch/x86/entry/common.c')
0 files changed, 0 insertions, 0 deletions