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mm/madvise: fix memory leak from process_madvise

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The early return in process_madvise() will produce a memory leak.

Fix it.

Fixes: ecb8ac8b1f ("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>
This commit is contained in:
Eric Dumazet 2020-11-21 22:16:58 -08:00 • committed by Linus Torvalds
parent a349e4c659
commit 450677dcb0
1 changed files with 0 additions and 2 deletions
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2
mm/madvise.c
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@ -1231,8 +1231,6 @@ SYSCALL_DEFINE5(process_madvise, int, pidfd, const struct iovec __user *, vec,
ret = total_len - iov_iter_count(&iter);
mmput(mm);
return ret;
release_task:
put_task_struct(task);
put_pid: