tree 6122a01208f56efd2766697a265ba559cbbbb452
parent b9d9d6911bd5c370ad4b3aa57d758c093d17aed5
author Thomas Gleixner <tglx@linutronix.de> 1482789500 +0100
committer Linus Torvalds <torvalds@linux-foundation.org> 1482802224 -0800

x86/mce/AMD: Make the init code more robust

If mce_device_init() fails then the mce device pointer is NULL and the
AMD mce code happily dereferences it.

Add a sanity check.

Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Reported-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>