UPSTREAM: mm/madvise: fix memory leak from process_madvise
The early return in process_madvise() will produce a memory leak. Fix it. Fixes: ecb8ac8b1f14 ("mm/madvise: introduce process_madvise() syscall: an external memory hinting API") Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Link: https://lkml.kernel.org/r/20201116155132.GA3805951@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: UtsavBalar1231 <utsavbalar1231@gmail.com> Change-Id: Iaac716b6096f0bf9e4837658dbbb4ff75294b86d
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@ -1253,8 +1253,6 @@ SYSCALL_DEFINE5(process_madvise, int, pidfd, const struct iovec __user *, vec,
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ret = total_len - iov_iter_count(&iter);
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mmput(mm);
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return ret;
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release_task:
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put_task_struct(task);
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put_pid:
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