drm/i915: Protect against leaks in pipe_crc_set_source
Stupid userspace (there is no evil userspace in debugfs by assumption)
might provoke a leak since we allocate the new array without holding
any locks. Drop in an unconditional kfree to deal with this - kfree
can handle NULL.
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 252b0b2..165a38f 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -3433,6 +3433,7 @@
hsw_disable_ips(crtc);
spin_lock_irq(&pipe_crc->lock);
+ kfree(pipe_crc->entries);
pipe_crc->entries = entries;
pipe_crc->head = 0;
pipe_crc->tail = 0;