* [PATCH] net: strparser: fix a missing check for create_singlethread_workqueue
@ 2019-03-15 4:12 Kangjie Lu
2019-03-15 19:52 ` David Miller
0 siblings, 1 reply; 2+ messages in thread
From: Kangjie Lu @ 2019-03-15 4:12 UTC (permalink / raw)
To: kjlu
Cc: pakki001, David S. Miller, Doron Roberts-Kedes, Vakul Garg,
Dave Watson, YueHaibing, netdev, linux-kernel
In case create_singlethread_workqueue fails, the check returns
an error to callers to avoid potential NULL pointer dereferences.
Signed-off-by: Kangjie Lu <kjlu@umn.edu>
---
net/strparser/strparser.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/net/strparser/strparser.c b/net/strparser/strparser.c
index da1a676860ca..860dcfb95ee4 100644
--- a/net/strparser/strparser.c
+++ b/net/strparser/strparser.c
@@ -550,6 +550,8 @@ EXPORT_SYMBOL_GPL(strp_check_rcv);
static int __init strp_mod_init(void)
{
strp_wq = create_singlethread_workqueue("kstrp");
+ if (unlikely(!strp_wq))
+ return -ENOMEM;
return 0;
}
--
2.17.1
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