Matt Fleming f464246d85 efivars: only check for duplicates on the registered list ... variable_is_present() accesses '__efivars' directly, but when called via gsmi_init() Michel reports observing the following crash, BUG: unable to handle kernel NULL pointer dereference at (null) IP: variable_is_present+0x55/0x170 Call Trace: register_efivars+0x106/0x370 gsmi_init+0x2ad/0x3da do_one_initcall+0x3f/0x170 The reason for the crash is that '__efivars' hasn't been initialised nor has it been registered with register_efivars() by the time the google EFI SMI driver runs. The gsmi code uses its own struct efivars, and therefore, a different variable list. Fix the above crash by passing the registered struct efivars to variable_is_present(), so that we traverse the correct list. Reported-by: Michel Lespinasse <walken@google.com> Tested-by: Michel Lespinasse <walken@google.com> Cc: Mike Waychison <mikew@google.com> Cc: Matthew Garrett <matthew.garrett@nebula.com> Cc: Seiji Aguchi <seiji.aguchi@hds.com> Signed-off-by: Matt Fleming <matt.fleming@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2013-04-26 08:02:03 -07:00
..
google
dcdbas.c
dcdbas.h
dell_rbu.c
dmi_scan.c	dmi_scan: fix missing check for _DMI_ signature in smbios_present()	2013-03-08 15:05:34 -08:00
dmi-id.c
dmi-sysfs.c
edd.c
efivars.c	efivars: only check for duplicates on the registered list	2013-04-26 08:02:03 -07:00
iscsi_ibft_find.c
iscsi_ibft.c
Kconfig	Move utf16 functions to kernel core and rename	2013-04-15 21:23:03 +01:00
Makefile
memmap.c	memory-hotplug: remove /sys/firmware/memmap/X sysfs	2013-02-23 17:50:12 -08:00
pcdp.c
pcdp.h