[PATCH] Unlock mutex on error

[Alex Deucher]

Applied.  Thanks!

Alex

On Tue, Jun 23, 2020 at 5:33 PM John van der Kamp <sjonny at suffe.me.uk> wrote:
>
> Make sure we pass through ret label to unlock the mutex.
>
> Signed-off-by: John van der Kamp <sjonny at suffe.me.uk>
> ---
>  drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
> index dcf84a61de37..949d10ef8304 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
> @@ -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;
> --
> 2.20.1
>
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