Guenter Roeck 65d1e3ddea nios2: time: Read timer in get_cycles only if initialized ... Mainline crashes as follows when running nios2 images. On node 0 totalpages: 65536 free_area_init_node: node 0, pgdat c8408fa0, node_mem_map c8726000 Normal zone: 512 pages used for memmap Normal zone: 0 pages reserved Normal zone: 65536 pages, LIFO batch:15 Unable to handle kernel NULL pointer dereference at virtual address 00000000 ea = c8003cb0, ra = c81cbf40, cause = 15 Kernel panic - not syncing: Oops Problem is seen because get_cycles() is called before the timer it depends on is initialized. Returning 0 in that situation fixes the problem. Fixes: 33d72f3822 ("init/main.c: extract early boot entropy from the ..") Cc: Laura Abbott <labbott@redhat.com> Cc: Kees Cook <keescook@chromium.org> Cc: Daniel Micay <danielmicay@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>		2017-09-15 20:30:58 +08:00
..
.gitignore	nios2: add .gitignore entries for auto-generated files	2017-05-08 16:59:19 +08:00
asm-offsets.c
cpuinfo.c	nios2: Add CDX support	2017-05-08 16:59:19 +08:00
entry.S
head.S
insnemu.S
irq.c	nios2: constify irq_domain_ops	2017-05-08 16:59:19 +08:00
kgdb.c
Makefile	nios2: remove custom early console implementation	2017-05-11 17:44:21 +08:00
misaligned.c	nios2: remove unused statistic counters	2015-09-08 01:32:34 +08:00
module.c
nios2_ksyms.c
process.c	sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h>	2017-03-02 08:42:37 +01:00
prom.c	nios2: remove custom early console implementation	2017-05-11 17:44:21 +08:00
ptrace.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
setup.c	nios2: remove custom early console implementation	2017-05-11 17:44:21 +08:00
signal.c
sys_nios2.c
syscall_table.c
time.c	nios2: time: Read timer in get_cycles only if initialized	2017-09-15 20:30:58 +08:00
traps.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h>	2017-03-02 08:42:34 +01:00
vmlinux.lds.S	nmi_backtrace: generate one-line reports for idle cpus	2016-10-07 18:46:30 -07:00