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Harshit Mogalapalli 55db76caa7 i915/perf: Fix NULL deref bugs with drm_dbg() calls 
commit 471aa951bf1206d3c10d0daa67005b8e4db4ff83 upstream.

When i915 perf interface is not available dereferencing it will lead to
NULL dereferences.

As returning -ENOTSUPP is pretty clear return when perf interface is not
available.

Fixes: 2fec539112 ("i915/perf: Replace DRM_DEBUG with driver specific drm_dbg call")
Suggested-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: <stable@vger.kernel.org> # v6.0+
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231027172822.2753059-1-harshit.m.mogalapalli@oracle.com
[tursulin: added stable tag]
(cherry picked from commit 36f27350ff745bd228ab04d7845dfbffc177a889)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-11-28 17:07:07 +00:00
..
drm i915/perf: Fix NULL deref bugs with drm_dbg() calls 2023-11-28 17:07:07 +00:00
host1x gpu: host1x: Correct allocated size for contexts 2023-11-20 11:52:00 +01:00
ipu-v3 gpu: ipu-v3: common: Add of_node_put() for reference returned by of_graph_get_port_by_id() 2023-03-10 09:33:10 +01:00
trace
vga
Makefile