tree 2155c46b6af3bb6a37909cdb74cb94b4bf071124
parent 99f23c2cded85a377325aa9fd374ffa3d55d1088
author Alexander Potapenko <glider@google.com> 1461885549 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1461897244 -0700

lib/stackdepot.c: allow the stack trace hash to be zero

Do not bail out from depot_save_stack() if the stack trace has zero hash.
Initially depot_save_stack() silently dropped stack traces with zero
hashes, however there's actually no point in reserving this zero value.

Reported-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Alexander Potapenko <glider@google.com>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>