mm: fix exit_mmap BUG() on a.out binary exit

The problem was introduced by commit "mm: variable length argument
support" (b6a2fea39318e43fee84fa7b0b90d68bed92d2ba)
as it didn't update fs/binfmt_aout.c like other binfmt's.

I noticed that on alpha when accidentally launched old OSF/1
Acrobat Reader binary. Obviously, other architectures are affected
as well.

Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Ollie Wild <aaw@google.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
index e176d195e7e53982659388b970d60270f9bb695b..7596e1e94cde858df0ba7ea0907f9b86d1f4132e 100644 (file)
--- a/fs/binfmt_aout.c
+++ b/fs/binfmt_aout.c
@@ -319,7 +319,6 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs)
        current->mm->free_area_cache = current->mm->mmap_base;
        current->mm->cached_hole_size = 0;
 
-       current->mm->mmap = NULL;
        compute_creds(bprm);
        current->flags &= ~PF_FORKNOEXEC;
 #ifdef __sparc__