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authorColin Ian King <colin.king@canonical.com>2015-03-16 23:42:24 +0100
committerMarc Kleine-Budde <mkl@pengutronix.de>2015-03-22 18:14:50 +0100
commit37920a74abd6fdf0696730ba80a07843a62c9c54 (patch)
tree254856eadad2f766bfaa2ea7f868f9be78030fcc /drivers/net/can
parentcan: kvaser_usb: Fix sparse warning __le16 degrades to integer (diff)
downloadlinux-37920a74abd6fdf0696730ba80a07843a62c9c54.tar.xz
linux-37920a74abd6fdf0696730ba80a07843a62c9c54.zip
can: gs_usb: check for kzalloc allocation failure
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@canonical.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can')
-rw-r--r--drivers/net/can/usb/gs_usb.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c
index 009acc8641fc..8b4d3e6875eb 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);