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

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Date:   Wed, 1 Mar 2017 18:30:19 +0800
From:   kbuild test robot <fengguang.wu@...el.com>
To:     Alan Cox <alan@...ux.intel.com>
Cc:     kbuild-all@...org, devel@...verdev.osuosl.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mauro Carvalho Chehab <m.chehab@...sung.com>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] staging/atomisp: fix returnvar.cocci warnings

drivers/staging/media/atomisp/pci/atomisp2/./atomisp_ioctl.c:560:5-8: Unneeded variable: "ret". Return "0" on line 577


 Remove unneeded variable used to store return value.

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

CC: Alan Cox <alan@...ux.intel.com>
Signed-off-by: Fengguang Wu <fengguang.wu@...el.com>
---

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

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

--- a/drivers/staging/media/atomisp/pci/atomisp2/./atomisp_ioctl.c
+++ b/drivers/staging/media/atomisp/pci/atomisp2/./atomisp_ioctl.c
@@ -557,8 +557,6 @@ const struct atomisp_format_bridge *atom
 static int atomisp_querycap(struct file *file, void *fh,
 			    struct v4l2_capability *cap)
 {
-	int ret = 0;
-
 	memset(cap, 0, sizeof(struct v4l2_capability));
 
 	WARN_ON(sizeof(DRIVER) > sizeof(cap->driver) ||
@@ -574,7 +572,7 @@ static int atomisp_querycap(struct file
 	cap->device_caps = V4L2_CAP_VIDEO_CAPTURE |
 	    V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_OUTPUT;
 	cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
-	return ret;
+	return 0;
 }
 
 /*