From 4202066c6995200b2755a4501ea90f5d4e163e41 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Thu, 27 May 2010 09:36:45 -0300 Subject: V4L/DVB: drivers/media: Eliminate a NULL pointer dereference In each case, the print involves dereferencing a value that is NULL or is near NULL. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @r exists@ expression E,E1; identifier f; statement S1,S2,S3; @@ if ((E == NULL && ...) || ...) { ... when != if (...) S1 else S2 when != E = E1 * E->f ... when any return ...; } else S3 // Signed-off-by: Julia Lawall Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/usbvision/usbvision-video.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/media/video/usbvision') diff --git a/drivers/media/video/usbvision/usbvision-video.c b/drivers/media/video/usbvision/usbvision-video.c index 6248a639ba2d..c2690df33438 100644 --- a/drivers/media/video/usbvision/usbvision-video.c +++ b/drivers/media/video/usbvision/usbvision-video.c @@ -1671,8 +1671,7 @@ static void __devexit usbvision_disconnect(struct usb_interface *intf) PDEBUG(DBG_PROBE, ""); if (usbvision == NULL) { - dev_err(&usbvision->dev->dev, - "%s: usb_get_intfdata() failed\n", __func__); + pr_err("%s: usb_get_intfdata() failed\n", __func__); return; } -- cgit v1.2.3