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xtensa: fix lock_mm_and_find_vma in case VMA not found
commit 03f8893 upstream. MMU version of lock_mm_and_find_vma releases the mm lock before returning when VMA is not found. Do the same in noMMU version. This fixes hang on an attempt to handle protection fault. Fixes: d85a143 ("xtensa: fix NOMMU build with lock_mm_and_find_vma() conversion") Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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