drm/i915: Free write_buf that we allocated with kzalloc.
authorRodrigo Vivi <rodrigo.vivi@intel.com>
Thu, 23 Aug 2018 20:51:36 +0000 (13:51 -0700)
committerRodrigo Vivi <rodrigo.vivi@intel.com>
Tue, 28 Aug 2018 19:50:43 +0000 (12:50 -0700)
commit1b1b1162745e5f9e5c6c095afc8081df3edabc50
treee9d3a2a563f7d5848cacd30ebef270d346e739fe
parent5b2695fd4b20f9b8320e9ecbfc232842bacf5b6f
drm/i915: Free write_buf that we allocated with kzalloc.

We use kzalloc to allocate the write_buf that we use for
i2c transfer on hdcp write. But it seems that we are forgetting
to free the memory that is not needed after i2c transfer is
completed.

Reported-by: Brian J Wood <brian.j.wood@intel.com>
Fixes: 2320175feb74 ("drm/i915: Implement HDCP for HDMI")
Cc: Ramalingam C <ramalingam.c@intel.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: <stable@vger.kernel.org> # v4.17+
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180823205136.31310-1-rodrigo.vivi@intel.com
(cherry picked from commit 62d3a8deaa10b8346d979d0dabde56c33b742afa)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
drivers/gpu/drm/i915/intel_hdmi.c