[PATCH 4.9 42/60] drivers/misc/c2port/c2port-duramar2150.c: checking for NULL instead of IS_ERR()

Greg Kroah-Hartman
2017-06-19T15:30:19Z

From: Dan Carpenter <dan.carpenter@oracle.com>

commit 8128a31eaadbcdfa37774bbd28f3f00bac69996a upstream.

c2port_device_register() never returns NULL, it uses error pointers.

Link: http://lkml.kernel.org/r/20170412083321.GC3250@mwanda
Fixes: 65131cd52b9e ("c2port: add c2port support for Eurotech Duramar 2150")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Rodolfo Giometti <giometti@linux.it>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/misc/c2port/c2port-duramar2150.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/misc/c2port/c2port-duramar2150.c
+++ b/drivers/misc/c2port/c2port-duramar2150.c
@@ -129,8 +129,8 @@ static int __init duramar2150_c2port_ini

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;
}