[PATCH] c2port: fix return value check in duramar2150_c2port_init()

From: Wei Yongjun
Date: Thu Jul 04 2013 - 09:33:15 EST


From: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>

In case of error, the function c2port_device_register() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should be
replaced with IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
---
drivers/misc/c2port/c2port-duramar2150.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/misc/c2port/c2port-duramar2150.c b/drivers/misc/c2port/c2port-duramar2150.c
index 5484301..3dc61ea 100644
--- a/drivers/misc/c2port/c2port-duramar2150.c
+++ b/drivers/misc/c2port/c2port-duramar2150.c
@@ -129,8 +129,8 @@ static int __init duramar2150_c2port_init(void)

duramar2150_c2port_dev = c2port_device_register("uc",
&duramar2150_c2port_ops, NULL);
- if (!duramar2150_c2port_dev) {
- ret = -ENODEV;
+ if (IS_ERR(duramar2150_c2port_dev)) {
+ ret = PTR_ERR(duramar2150_c2port_dev);
goto free_region;
}


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