[PATCH] thermal/drivers/devfreq_cooling: Fix wrong return on error path

[Daniel Lezcano]

The following error is reported by kbuild:

 smatch warnings:
 drivers/thermal/devfreq_cooling.c:433 of_devfreq_cooling_register_power() 
warn: passing zero to 'ERR_PTR'

Fix the error code by the setting the 'err' variable instead of 'cdev'.

Fixes: f8d354e821b2 ("thermal/drivers/devfreq_cooling: Use device name instead 
of auto-numbering")
Reported-by: kernel test robot <l...@intel.com>
Reported-by: Dan Carpenter <dan.carpen...@oracle.com>
Signed-off-by: Daniel Lezcano <daniel.lezc...@linaro.org>
---
 drivers/thermal/devfreq_cooling.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/thermal/devfreq_cooling.c 
b/drivers/thermal/devfreq_cooling.c
index fb250ac16f50..3a788ac4f525 100644
--- a/drivers/thermal/devfreq_cooling.c
+++ b/drivers/thermal/devfreq_cooling.c
@@ -402,7 +402,7 @@ of_devfreq_cooling_register_power(struct device_node *np, 
struct devfreq *df,
        if (err < 0)
                goto free_table;
 
-       cdev = ERR_PTR(-ENOMEM);
+       err = -ENOMEM;
        name = kasprintf(GFP_KERNEL, "devfreq-%s", dev_name(dev));
        if (!name)
                goto remove_qos_req;
-- 
2.25.1