[PATCH 24/30] thermal: cpu_cooling: use snprintf instead of sprintf

[Eduardo Valentin]

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

Cc: Zhang Rui <rui.zhang@xxxxxxxxx>
Cc: linux-pm@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Eduardo Valentin <eduardo.valentin@xxxxxx>
---
 drivers/thermal/cpu_cooling.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/thermal/cpu_cooling.c b/drivers/thermal/cpu_cooling.c
index b55cfc2..b1f9a4d 100644
--- a/drivers/thermal/cpu_cooling.c
+++ b/drivers/thermal/cpu_cooling.c
@@ -465,7 +465,8 @@ cpufreq_cooling_register(const struct cpumask *clip_cpus)
 		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);
-- 
1.8.2.1.342.gfa7285d

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