[PATCH 5.4 441/475] SUNRPC: Handle ENOMEM in call_transmit_status()

From: Greg Kroah-Hartman
Date: Thu Apr 14 2022 - 11:20:44 EST


From: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>

[ Upstream commit d3c15033b240767d0287f1c4a529cbbe2d5ded8a ]

Both call_transmit() and call_bc_transmit() can now return ENOMEM, so
let's make sure that we handle the errors gracefully.

Fixes: 0472e4766049 ("SUNRPC: Convert socket page send code to use iov_iter()")
Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
net/sunrpc/clnt.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index b6039642df67..bc191d2c193e 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -2223,6 +2223,7 @@ call_transmit_status(struct rpc_task *task)
* socket just returned a connection error,
* then hold onto the transport lock.
*/
+ case -ENOMEM:
case -ENOBUFS:
rpc_delay(task, HZ>>2);
/* fall through */
@@ -2308,6 +2309,7 @@ call_bc_transmit_status(struct rpc_task *task)
case -ENOTCONN:
case -EPIPE:
break;
+ case -ENOMEM:
case -ENOBUFS:
rpc_delay(task, HZ>>2);
/* fall through */
--
2.35.1