[patch] PM / devfreq: create_freezable_workqueue() doesn't return an ERR_PTR

[Dan Carpenter]

The create_freezable_workqueue() function returns a NULL on error and
not an ERR_PTR.

Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>

diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index e94e619..5088523 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -983,10 +983,10 @@ static int __init devfreq_init(void)
        }
 
        devfreq_wq = create_freezable_workqueue("devfreq_wq");
-       if (IS_ERR(devfreq_wq)) {
+       if (!devfreq_wq) {
                class_destroy(devfreq_class);
                pr_err("%s: couldn't create workqueue\n", __FILE__);
-               return PTR_ERR(devfreq_wq);
+               return -ENOMEM;
        }
        devfreq_class->dev_attrs = devfreq_attrs;
 
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