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staging: vme: fix for a potential NULL pointer dereference

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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>
This commit is contained in:
Kumar Amit Mehta 2013-03-24 22:37:48 -07:00 committed by Greg Kroah-Hartman
parent 50e4d3ac03
commit d4113a69bc
1 changed files with 4 additions and 0 deletions
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4
drivers/staging/vme/devices/vme_user.c
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@ -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);