thermal: cpu_cooling: use snprintf instead of sprintf

Limit the amount of bytes written to dev_name by
secure writing with snprintf.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Acked-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>

diff --git a/drivers/thermal/cpu_cooling.c b/drivers/thermal/cpu_cooling.c
index b4161cf..a04269d 100644 (file)
--- a/drivers/thermal/cpu_cooling.c
+++ b/drivers/thermal/cpu_cooling.c
@@ -458,7 +458,8 @@ struct thermal_cooling_device *cpufreq_cooling_register(
                return ERR_PTR(-EINVAL);
        }
 
-       sprintf(dev_name, "thermal-cpufreq-%d", cpufreq_dev->id);
+       snprintf(dev_name, sizeof(dev_name), "thermal-cpufreq-%d",
+                cpufreq_dev->id);
 
        cool_dev = thermal_cooling_device_register(dev_name, cpufreq_dev,
                                                &cpufreq_cooling_ops);