diff options
| author | Hans J. Koch <hjk@linutronix.de> | 2010-04-21 04:18:06 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-04-22 03:14:51 +0400 |
| commit | 1c0b28b1ee90261a0a27194e6684dd2837785064 (patch) | |
| tree | e5c31e2fc729ad0a6bd8e6291a5fb1f9d1bdf624 /drivers/net/can | |
| parent | 05d17608a69b3ae653ea5c9857283bef3439c733 (diff) | |
| download | linux-1c0b28b1ee90261a0a27194e6684dd2837785064.tar.xz | |
can: Fix possible NULL pointer dereference in ems_usb.c
In ems_usb_probe(), a pointer is dereferenced after making sure it is NULL...
This patch replaces netdev->dev.parent with &intf->dev in dev_err() calls to
avoid this.
Signed-off-by: "Hans J. Koch" <hjk@linutronix.de>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/can')
| -rw-r--r-- | drivers/net/can/usb/ems_usb.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c index 33451092b8e8..d800b598ae3d 100644 --- a/drivers/net/can/usb/ems_usb.c +++ b/drivers/net/can/usb/ems_usb.c @@ -1006,7 +1006,7 @@ static int ems_usb_probe(struct usb_interface *intf, netdev = alloc_candev(sizeof(struct ems_usb), MAX_TX_URBS); if (!netdev) { - dev_err(netdev->dev.parent, "Couldn't alloc candev\n"); + dev_err(&intf->dev, "ems_usb: Couldn't alloc candev\n"); return -ENOMEM; } @@ -1036,20 +1036,20 @@ static int ems_usb_probe(struct usb_interface *intf, dev->intr_urb = usb_alloc_urb(0, GFP_KERNEL); if (!dev->intr_urb) { - dev_err(netdev->dev.parent, "Couldn't alloc intr URB\n"); + dev_err(&intf->dev, "Couldn't alloc intr URB\n"); goto cleanup_candev; } dev->intr_in_buffer = kzalloc(INTR_IN_BUFFER_SIZE, GFP_KERNEL); if (!dev->intr_in_buffer) { - dev_err(netdev->dev.parent, "Couldn't alloc Intr buffer\n"); + dev_err(&intf->dev, "Couldn't alloc Intr buffer\n"); goto cleanup_intr_urb; } dev->tx_msg_buffer = kzalloc(CPC_HEADER_SIZE + sizeof(struct ems_cpc_msg), GFP_KERNEL); if (!dev->tx_msg_buffer) { - dev_err(netdev->dev.parent, "Couldn't alloc Tx buffer\n"); + dev_err(&intf->dev, "Couldn't alloc Tx buffer\n"); goto cleanup_intr_in_buffer; } |