diff options
| author | YueHaibing <yuehaibing@huawei.com> | 2019-03-06 19:46:14 +0800 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2019-04-25 19:38:26 +0300 |
| commit | 444efbde32816a950c1749582f2e9241e3d5ee80 (patch) | |
| tree | 33588e9bf07afbfe9dc19ef5a9847487f870a51c /drivers/net/wireless/ray_cs.c | |
| parent | d442af2e1bcb1540297210ab2ddb3fc8a444c568 (diff) | |
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 <yuehaibing@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/ray_cs.c')
| -rw-r--r-- | drivers/net/wireless/ray_cs.c | 2 |
1 files changed, 2 insertions, 0 deletions
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); |