James Custer fa2a79ce6a x86: UV BAU: Avoid NULL pointer reference in ptc_seq_show ... In init_per_cpu(), when get_cpu_topology() fails, init_per_cpu_tunables() is not called afterwards. This means that bau_control->statp is NULL. If a user then reads /proc/sgi_uv/ptc_statistics ptc_seq_show() references a NULL pointer. Therefore, since uv_bau_init calls set_bau_off when init_per_cpu() fails, we add code that detects when the bau is off in ptc_seq_show() to avoid referencing a NULL pointer. Signed-off-by: James Custer <jcuster@sgi.com> Cc: Russ Anderson <rja@sgi.com> Link: http://lkml.kernel.org/r/1414952199-185319-2-git-send-email-jcuster@sgi.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>		2014-11-03 13:49:24 +01:00
..
bios_uv.c	x86/efi: Delete most of the efi_call* macros	2014-04-17 13:26:30 +01:00
Makefile	x86/UV: Move NMI support	2013-09-24 09:02:02 +02:00
tlb_uv.c	x86: UV BAU: Avoid NULL pointer reference in ptc_seq_show	2014-11-03 13:49:24 +01:00
uv_irq.c	x86: uv: Use irq_alloc/free_hwirq()	2014-05-16 14:05:19 +02:00
uv_nmi.c	uv: Replace __get_cpu_var	2014-08-26 13:45:50 -04:00
uv_sysfs.c	driver-core: remove sysdev.h usage.	2011-12-21 16:26:03 -08:00
uv_time.c	x86: Replace __get_cpu_var uses	2014-08-26 13:45:49 -04:00