video: exynos_mipi_dsi: Unlock the mutex before returning

Mutex should be unlocked before returning. Fixes mutex lock-unlock
imbalance issue.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/video/exynos/exynos_mipi_dsi_common.c b/drivers/video/exynos/exynos_mipi_dsi_common.c
index 9b321652b810..7eed957b6014 100644
--- a/drivers/video/exynos/exynos_mipi_dsi_common.c
+++ b/drivers/video/exynos/exynos_mipi_dsi_common.c
@@ -376,6 +376,7 @@ int exynos_mipi_dsi_rd_data(struct mipi_dsim_device *dsim, unsigned int data_id,
                         "data id %x is not supported current DSI spec.\n",
                         data_id);
 
+                mutex_unlock(&dsim->lock);
                 return -EINVAL;
         }