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authorKumar Amit Mehta <gmate.amit@gmail.com>2013-03-24 22:37:48 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-03-25 11:17:33 -0700
commitd4113a69bc9ca518f492b2ad7d2d586cd2ca5803 (patch)
treeb77beb0ec28c71834555f431cdf1ef1889bda4ec /drivers/staging/vme/devices/vme_user.c
parent50e4d3ac039b733400673c62ba57de6ec13b3fbe (diff)
downloadlinaro-lsk-d4113a69bc9ca518f492b2ad7d2d586cd2ca5803.tar.gz
staging: vme: fix for a potential NULL pointer dereference
Audit the return value of cdev_alloc and hence fixes a potential NULL pointer dereferencing. Signed-off-by: Kumar Amit Mehta <gmate.amit@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/vme/devices/vme_user.c')
-rw-r--r--drivers/staging/vme/devices/vme_user.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/staging/vme/devices/vme_user.c b/drivers/staging/vme/devices/vme_user.c
index d074b1ecb41..da7f7598497 100644
--- a/drivers/staging/vme/devices/vme_user.c
+++ b/drivers/staging/vme/devices/vme_user.c
@@ -710,6 +710,10 @@ static int vme_user_probe(struct vme_dev *vdev)
/* Register the driver as a char device */
vme_user_cdev = cdev_alloc();
+ if (!vme_user_cdev) {
+ err = -ENOMEM;
+ goto err_char;
+ }
vme_user_cdev->ops = &vme_user_fops;
vme_user_cdev->owner = THIS_MODULE;
err = cdev_add(vme_user_cdev, MKDEV(VME_MAJOR, 0), VME_DEVS);