pps: fix incorrect verdict check

Fix incorrect verdict check and returns error if device_create failed,
otherwise driver triggers kernel oops.

Signed-off-by: Joonwoo Park<joonwpark81@gmail.com>
Cc: Rodolfo Giometti <giometti@enneenne.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/pps/pps.c b/drivers/pps/pps.c
index ac8cc8c..fea17e7 100644 (file)
--- a/drivers/pps/pps.c
+++ b/drivers/pps/pps.c
@@ -244,7 +244,7 @@ int pps_register_cdev(struct pps_device *pps)
        }
        pps->dev = device_create(pps_class, pps->info.dev, pps->devno, NULL,
                                                        "pps%d", pps->id);
-       if (err)
+       if (IS_ERR(pps->dev))
                goto del_cdev;
        dev_set_drvdata(pps->dev, pps);