[PATCH -next] media: exynos4-is: Fix unused variable warning

GCC reports the following warning with W=1:

drivers/media/platform/exynos4-is/media-dev.c:1284:6: warning:
 unused variable ‘ret’ [-Wunused-variable]
 1284 |  int ret;
      |      ^~~

This variable is not used in function , this commit
remove it to fix the warning.

Signed-off-by: Pu Lehui <pulehui@huawei.com>
---
 drivers/media/platform/exynos4-is/media-dev.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c
index e025178db06c..3b8a24bb724c 100644
--- a/drivers/media/platform/exynos4-is/media-dev.c
+++ b/drivers/media/platform/exynos4-is/media-dev.c

@@ -1284,7 +1284,6 @@ static DEVICE_ATTR(subdev_conf_mode, S_IWUSR | S_IRUGO,
 static int cam_clk_prepare(struct clk_hw *hw)
 {
 	struct cam_clk *camclk = to_cam_clk(hw);
-	int ret;
 
 	if (camclk->fmd->pmf == NULL)
 		return -ENODEV;

-- 
2.17.1