From e53a99eb154d1ab6a7ddcaa960b4bddc701c7c2d Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Tue, 24 Jul 2012 11:06:09 -0300 Subject: [PATCH] [media] drivers/staging/media/easycap/easycap_main.c: add missing usb_free_urb Add missing usb_free_urb on failure path after usb_alloc_urb. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @km exists@ local idexpression e; expression e1,e2,e3; type T,T1; identifier f; @@ * e = usb_alloc_urb(...) ... when any when != e = e1 when != e1 = (T)e when != e1(...,(T)e,...) when != &e->f if(...) { ... when != e2(...,(T1)e,...) when != e3 = e when forall ( return <+...e...+>; | * return ...; ) } // Signed-off-by: Julia Lawall Signed-off-by: Mauro Carvalho Chehab --- drivers/staging/media/easycap/easycap_main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/staging/media/easycap/easycap_main.c b/drivers/staging/media/easycap/easycap_main.c index aed9537..19d2d9d6 100644 --- a/drivers/staging/media/easycap/easycap_main.c +++ b/drivers/staging/media/easycap/easycap_main.c @@ -3083,6 +3083,7 @@ static int create_video_urbs(struct easycap *peasycap) peasycap->allocation_video_urb += 1; pdata_urb = kzalloc(sizeof(struct data_urb), GFP_KERNEL); if (!pdata_urb) { + usb_free_urb(purb); SAM("ERROR: Could not allocate struct data_urb.\n"); return -ENOMEM; } -- 2.7.4