[PATCH] drm: msm: dsi: Added missing mutex_unlock

[Saurabh Sengar]

in case of failed to get iova, function was returning without releasing
the mutex. Added it.

Signed-off-by: Saurabh Sengar <saurabh.truth at gmail.com>
---
 drivers/gpu/drm/msm/dsi/dsi_host.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c 
b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 4c49868..13f937b 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -849,11 +849,11 @@ static int dsi_tx_buf_alloc(struct msm_dsi_host 
*msm_host, int size)
        }

        ret = msm_gem_get_iova_locked(msm_host->tx_gem_obj, 0, &iova);
+       mutex_unlock(&dev->struct_mutex);
        if (ret) {
                pr_err("%s: failed to get iova, %d\n", __func__, ret);
                return ret;
        }
-       mutex_unlock(&dev->struct_mutex);

        if (iova & 0x07) {
                pr_err("%s: buf NOT 8 bytes aligned\n", __func__);
-- 
1.9.1