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| author |   Rasmus Villemoes <linux@rasmusvillemoes.dk> | 2015-11-05 18:50:11 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-05 19:34:48 -0800 |
| commit | 9dd861d55b01f1d0848f82007e8665371ae18710 (patch) | |
| tree | 537eb40b4eed90c1d673b3bd76cdb6860150df12 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | mm/cma.c: suppress warning (diff) | |
| download | wireguard-linux-9dd861d55b01f1d0848f82007e8665371ae18710.tar.xz wireguard-linux-9dd861d55b01f1d0848f82007e8665371ae18710.zip | |
mm/maccess.c: actually return -EFAULT from strncpy_from_unsafe
As far as I can tell, strncpy_from_unsafe never returns -EFAULT. ret is
the result of a __copy_from_user_inatomic(), which is 0 for success and
positive (in this case necessarily 1) for access error - it is never
negative. So we were always returning the length of the, possibly
truncated, destination string.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions