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(parent: 198f5cc) | patch
x86/mce/AMD: Make the init code more robust
authorThomas Gleixner <tglx@linutronix.de>
Mon, 26 Dec 2016 21:58:20 +0000 (22:58 +0100)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 27 Dec 2016 01:30:24 +0000 (17:30 -0800)
commit3fb1d4ea81d2ce7e2f90809ca3ddf51b2f28be73
tree6122a01208f56efd2766697a265ba559cbbbb452tree | snapshot
parent198f5cc4d0fa87112db159f4185cbdd8557ff217commit | diff
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>
arch/x86/kernel/cpu/mcheck/mce_amd.c diff | blob | history
Linux Kernel Source Tree.