mm/mmap.c: do not initialize retval in mmap_pgoff()
When fget() fails we can return -EBADF directly. Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Acked-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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