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drm/i915: Fix possible null pointer dereference after drm_dbg_printer conversion

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Request can be NULL if no guilty request was identified so simply use
engine->i915 instead.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Fixes: d50892a955 ("drm/i915: switch from drm_debug_printer() to device specific drm_dbg_printer()")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Luca Coelho <luciano.coelho@intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://lore.kernel.org/r/20240219131423.1854991-1-tvrtko.ursulin@linux.intel.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>
This commit is contained in:
Tvrtko Ursulin 2024-02-19 13:14:23 +00:00 committed by Maxime Ripard
parent a3baaca4a8
commit 32ca5ebfde
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GPG Key ID: E3EF0D6F671851C5
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c
View File

@ -96,8 +96,8 @@ static void heartbeat_commit(struct i915_request *rq,
static void show_heartbeat(const struct i915_request *rq,
struct intel_engine_cs *engine)
{
struct drm_printer p = drm_dbg_printer(&rq->i915->drm, DRM_UT_DRIVER,
"heartbeat");
struct drm_printer p =
drm_dbg_printer(&engine->i915->drm, DRM_UT_DRIVER, "heartbeat");
if (!rq) {
intel_engine_dump(engine, &p,