From: Wenwen Wang <wenwen@cs.uga.edu>
Date: Sat, 17 Aug 2019 02:27:46 -0300
Subject: media: cpia2_usb: fix memory leaks
Git-commit: 1c770f0f52dca1a2323c594f01f5ec6f1dddc97f
Patch-mainline: 5.4-rc1
References: bnc#1151927 5.3.4

In submit_urbs(), 'cam->sbuf[i].data' is allocated through kmalloc_array().
However, it is not deallocated if the following allocation for urbs fails.
To fix this issue, free 'cam->sbuf[i].data' if usb_alloc_urb() fails.

Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
 drivers/media/usb/cpia2/cpia2_usb.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/media/usb/cpia2/cpia2_usb.c
+++ b/drivers/media/usb/cpia2/cpia2_usb.c
@@ -676,6 +676,10 @@ static int submit_urbs(struct camera_dat
 		if (!urb) {
 			for (j = 0; j < i; j++)
 				usb_free_urb(cam->sbuf[j].urb);
+			for (j = 0; j < NUM_SBUF; j++) {
+				kfree(cam->sbuf[j].data);
+				cam->sbuf[j].data = NULL;
+			}
 			return -ENOMEM;
 		}