[PATCH] staging/atomisp: fix returnvar.cocci warnings

[kbuild test robot]

drivers/staging/media/atomisp/pci/atomisp2/./atomisp_subdev.c:161:5-8: Unneeded variable: "ret". Return "0" on line 163


 Remove unneeded variable used to store return value.

Generated by: scripts/coccinelle/misc/returnvar.cocci

CC: Alan Cox <alan@xxxxxxxxxxxxxxx>
Signed-off-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
---

Please take the patch only if it's a positive warning. Thanks!

 atomisp_subdev.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/drivers/staging/media/atomisp/pci/atomisp2/./atomisp_subdev.c
+++ b/drivers/staging/media/atomisp/pci/atomisp2/./atomisp_subdev.c
@@ -158,9 +158,7 @@ uint16_t atomisp_subdev_source_pad(struc
 static long isp_subdev_ioctl(struct v4l2_subdev *sd,
 	unsigned int cmd, void *arg)
 {
-	int ret = 0;
-
-	return ret;
+	return 0;
 }
 
 /*