Message ID | 20190306114614.19116-1-yuehaibing@huawei.com |
---|---|
State | Awaiting Upstream |
Delegated to: | David Miller |
Headers | show |
Series | ray_cs: Check return value of pcmcia_register_driver | expand |
Yue Haibing <yuehaibing@huawei.com> wrote: > From: YueHaibing <yuehaibing@huawei.com> > > 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 <yuehaibing@huawei.com> Patch applied to wireless-drivers-next.git, thanks. 444efbde3281 ray_cs: Check return value of pcmcia_register_driver
diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c index 44a943d..d561659 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);