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 <[email protected]>
Signed-off-by: Minchan Kim <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>
diff --git a/mm/madvise.c b/mm/madvise.c
index 416a56b..7e773f9 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -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:
