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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:2320175feb
("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 commit62d3a8deaa
) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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1 changed files with 6 additions and 2 deletions
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@ -943,8 +943,12 @@ static int intel_hdmi_hdcp_write(struct intel_digital_port *intel_dig_port,
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ret = i2c_transfer(adapter, &msg, 1);
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if (ret == 1)
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return 0;
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return ret >= 0 ? -EIO : ret;
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ret = 0;
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else if (ret >= 0)
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ret = -EIO;
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kfree(write_buf);
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return ret;
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}
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static
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