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Date: Mon, 16 Mar 2015 22:42:24 +0000 From: Colin King <colin.king@...onical.com> To: Wolfgang Grandegger <wg@...ndegger.com>, Marc Kleine-Budde <mkl@...gutronix.de>, linux-can@...r.kernel.org, netdev@...r.kernel.org Cc: linux-kernel@...r.kernel.org Subject: [PATCH] can: gs_usb: check for kzalloc allocation failure From: Colin Ian King <colin.king@...onical.com> smatch detected the following issue: drivers/net/can/usb/gs_usb.c:904 gs_usb_probe() error: potential null dereference 'dev'. (kzalloc returns null) Add a check for null return from kzalloc and return -ENOMEM Signed-off-by: Colin Ian King <colin.king@...onical.com> --- drivers/net/can/usb/gs_usb.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c index 009acc8..8b4d3e6 100644 --- a/drivers/net/can/usb/gs_usb.c +++ b/drivers/net/can/usb/gs_usb.c @@ -901,6 +901,8 @@ static int gs_usb_probe(struct usb_interface *intf, const struct usb_device_id * } dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (!dev) + return -ENOMEM; init_usb_anchor(&dev->rx_submitted); atomic_set(&dev->active_channels, 0); -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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