From d4113a69bc9ca518f492b2ad7d2d586cd2ca5803 Mon Sep 17 00:00:00 2001 From: Kumar Amit Mehta Date: Sun, 24 Mar 2013 22:37:48 -0700 Subject: [PATCH] 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 Signed-off-by: Greg Kroah-Hartman --- drivers/staging/vme/devices/vme_user.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/staging/vme/devices/vme_user.c b/drivers/staging/vme/devices/vme_user.c index d074b1ecb41a..da7f75984979 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);