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
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.gitignore	…
Makefile	nios2: remove custom early console implementation	2017-05-11 17:44:21 +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	…
kgdb.c	…
misaligned.c	…
module.c	…
nios2_ksyms.c	…
process.c	…
prom.c	nios2: remove custom early console implementation	2017-05-11 17:44:21 +08:00
ptrace.c	…
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	…
vmlinux.lds.S	…