tree d16cae310973cef4ada33fceabe780c102e14196
parent 85c6e8dd23c6aa9ff299bf5256fe5f0a6c44f100
author Andrea Arcangeli <aarcange@redhat.com> 1446778159 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1446780888 -0800

ksm: unstable_tree_search_insert error checking cleanup

get_mergeable_page() can only return NULL (also in case of errors) or the
pinned mergeable page.  It can't return an error different than NULL.
This optimizes away the unnecessary error check.

Add a return after the "out:" label in the callee to make it more
readable.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Petr Holasek <pholasek@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>