[PATCH] net: fm10k: fix a potential NULL pointer dereference
From: Kangjie Lu <hidden>
Date: 2019-03-11 06:17:46
Also in:
intel-wired-lan, lkml
Subsystem:
intel ethernet drivers, networking drivers, the rest · Maintainers:
Tony Nguyen, Przemek Kitszel, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
In case alloc_workqueue fails, the fix returns -ENOMEM to avoid potential NULL pointer dereference. Signed-off-by: Kangjie Lu <redacted> --- drivers/net/ethernet/intel/fm10k/fm10k_main.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_main.c b/drivers/net/ethernet/intel/fm10k/fm10k_main.c
index 5a0419421511..215f232674f1 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_main.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_main.c@@ -41,6 +41,8 @@ static int __init fm10k_init_module(void) /* create driver workqueue */ fm10k_workqueue = alloc_workqueue("%s", WQ_MEM_RECLAIM, 0, fm10k_driver_name); + if (unlikely(!fm10k_workqueue)) + return -ENOMEM; fm10k_dbg_init();
--
2.17.1