diff mbox series

[for-next,2/4] io_uring/net: checks errors of zc mem accounting

Message ID dae0542ed8e6706071bb83ad3e7ad6a70d207fd9.1658742118.git.asml.silence@gmail.com (mailing list archive)
State New
Headers show
Series io_uring/zc fix and improvements | expand

Commit Message

Pavel Begunkov July 25, 2022, 9:52 a.m. UTC 
mm_account_pinned_pages() may fail, don't ignore the return value.

Fixes: d3b8269075f67 ("io_uring: account locked pages for non-fixed zc")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
 io_uring/net.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/io_uring/net.c b/io_uring/net.c
index 62be89837d82..8fb8469c3315 100644
--- a/io_uring/net.c
+++ b/io_uring/net.c
@@ -985,7 +985,9 @@  int io_sendzc(struct io_kiocb *req, unsigned int issue_flags)
 					  &msg.msg_iter);
 		if (unlikely(ret))
 			return ret;
-		mm_account_pinned_pages(&notif->uarg.mmp, zc->len);
+		ret = mm_account_pinned_pages(&notif->uarg.mmp, zc->len);
+		if (unlikely(ret))
+			return ret;
 	}
 
 	if (zc->addr) {