From 444efbde32816a950c1749582f2e9241e3d5ee80 Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Wed, 6 Mar 2019 19:46:14 +0800 Subject: [PATCH] ray_cs: Check return value of pcmcia_register_driver init_ray_cs does not check value of pcmcia_register_driver, if it fails, there maybe cause a NULL pointer dereference in exit_ray_cs. Signed-off-by: YueHaibing Signed-off-by: Kalle Valo --- drivers/net/wireless/ray_cs.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c index 44a943d18b84..d5616592fc19 100644 --- a/drivers/net/wireless/ray_cs.c +++ b/drivers/net/wireless/ray_cs.c @@ -2795,6 +2795,8 @@ static int __init init_ray_cs(void) rc = pcmcia_register_driver(&ray_driver); pr_debug("raylink init_module register_pcmcia_driver returns 0x%x\n", rc); + if (rc) + return rc; #ifdef CONFIG_PROC_FS proc_mkdir("driver/ray_cs", NULL); -- 2.11.0