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drm/amdgpu/display: Unlock mutex on error 

Make sure we pass through ret label to unlock the mutex.

Signed-off-by: John van der Kamp <sjonny@suffe.me.uk>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
John van der Kamp 2020-06-23 23:30:54 +02:00 committed by Alex Deucher
parent 48778464bb
commit ee434a4f9f
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
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@ -510,8 +510,10 @@ static ssize_t srm_data_read(struct file *filp, struct kobject *kobj, struct bin
srm = psp_get_srm(work->hdcp.config.psp.handle, &srm_version, &srm_size);
if (!srm)
return -EINVAL;
if (!srm) {
ret = -EINVAL;
goto ret;
}
if (pos >= srm_size)
ret = 0;