Boris Ostrovsky da63865a01 x86, microcode: Return error from driver init code when loader is disabled ... Commits 65cef1311d ("x86, microcode: Add a disable chicken bit") and a18a0f6850 ("x86, microcode: Don't initialize microcode code on paravirt") allow microcode driver skip initialization when microcode loading is not permitted. However, they don't prevent the driver from being loaded since the init code returns 0. If at some point later the driver gets unloaded this will result in an oops while trying to deregister the (never registered) device. To avoid this, make init code return an error on paravirt or when microcode loading is disabled. The driver will then never be loaded. Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: http://lkml.kernel.org/r/1422411669-25147-1-git-send-email-boris.ostrovsky@oracle.com Reported-by: James Digwall <james@dingwall.me.uk> Cc: stable@vger.kernel.org # 3.18 Signed-off-by: Borislav Petkov <bp@suse.de>		2015-01-28 09:23:40 +01:00
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amd_early.c	x86, microcode: Reload microcode on resume	2014-12-06 13:03:03 +01:00
amd.c	x86, microcode, AMD: Do not use smp_processor_id() in preemtible context	2014-12-01 11:51:05 +01:00
core_early.c	x86, microcode: Reload microcode on resume	2014-12-06 13:03:03 +01:00
core.c	x86, microcode: Return error from driver init code when loader is disabled	2015-01-28 09:23:40 +01:00
intel_early.c	x86/microcode/intel: Fish out the stashed microcode for the BSP	2014-12-10 11:36:28 +01:00
intel_lib.c	x86, microcode: Move to a proper location	2014-01-13 20:00:12 +01:00
intel.c	x86, microcode, intel: Rename apply_microcode and declare it static	2014-07-25 17:57:51 +02:00
Makefile	x86, microcode: Move to a proper location	2014-01-13 20:00:12 +01:00