thermal: db8500_cpufreq_cooling: remove usage of IS_ERR_OR_NULL()

This patch changes the driver to avoid the usage of IS_ERR_OR_NULL()
macro. This macro can lead to dangerous results, like returning
success (0) during a failure scenario (NULL pointer handling).

The case present in this driver can be translated to a simple
check for IS_ERR(), as the cpufreq_cooling_register() returns
either a valid pointer or an ERR_PTR().

Cc: Zhang Rui <[email protected]>
Cc: Russell King <[email protected]>
Cc: Grant Likely <[email protected]>
Cc: Rob Herring <[email protected]>
Cc: Hongbo Zhang <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Eduardo Valentin <[email protected]>
Acked-by: Fabio Baltieri <[email protected]>
Signed-off-by: Zhang Rui <[email protected]>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/thermal/db8500_cpufreq_cooling.c b/drivers/thermal/db8500_cpufreq_cooling.c
index 21419851fc02..786d19263ab0 100644
--- a/drivers/thermal/db8500_cpufreq_cooling.c
+++ b/drivers/thermal/db8500_cpufreq_cooling.c
@@ -37,7 +37,7 @@ static int db8500_cpufreq_cooling_probe(struct platform_device *pdev)
 	cpumask_set_cpu(0, &mask_val);
 	cdev = cpufreq_cooling_register(&mask_val);
 
-	if (IS_ERR_OR_NULL(cdev)) {
+	if (IS_ERR(cdev)) {
 		dev_err(&pdev->dev, "Failed to register cooling device\n");
 		return PTR_ERR(cdev);
 	}