Re: [PATCH] c2port: checking for NULL instead of IS_ERR()

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On 04/12/17 10:33, Dan Carpenter wrote:
c2port_device_register() never returns NULL, it uses error pointers.

Fixes: 65131cd52b9e ("c2port: add c2port support for Eurotech Duramar 2150")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

Acked-by: Rodolfo Giometti <giometti@xxxxxxxx>

diff --git a/drivers/misc/c2port/c2port-duramar2150.c b/drivers/misc/c2port/c2port-duramar2150.c
index 5484301d57d9..3dc61ea7dc64 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;
 	}



--

HCE Engineering                      e-mail: giometti@xxxxxxxxxxxxxxxxxxx
GNU/Linux Solutions                          giometti@xxxxxxxxxxxx
Linux Device Driver                          giometti@xxxxxxxx
Embedded Systems                     phone:  +39 349 2432127
UNIX programming                     skype:  rodolfo.giometti
Cosino Project - the quick prototyping embedded system - www.cosino.io
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