diff mbox series

cpufreq: sun50i: Fix build warning around snprint()

Message ID 285de20a187f3e4baeb28f639b5bf55e914a3821.1713756666.git.viresh.kumar@linaro.org
State Accepted
Commit d2059d3b548409905b20b4f52495bffbd7c8da8b
Headers show
Series cpufreq: sun50i: Fix build warning around snprint() | expand

Commit Message

Viresh Kumar April 22, 2024, 3:31 a.m. UTC 
The Sun50i driver generates a warning with W=1:

warning: '%d' directive output may be truncated writing between 1 and 10 bytes into a region of size 2 [-Wformat-truncation=]

Fix it by allocating a big enough array to print an integer.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202404191715.LDwMm2gP-lkp@intel.com/
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/cpufreq/sun50i-cpufreq-nvmem.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/cpufreq/sun50i-cpufreq-nvmem.c b/drivers/cpufreq/sun50i-cpufreq-nvmem.c
index 30e5c337611c..cd50cea16a87 100644
--- a/drivers/cpufreq/sun50i-cpufreq-nvmem.c
+++ b/drivers/cpufreq/sun50i-cpufreq-nvmem.c
@@ -19,8 +19,6 @@ 
 #include <linux/pm_opp.h>
 #include <linux/slab.h>
 
-#define MAX_NAME_LEN	7
-
 #define NVMEM_MASK	0x7
 #define NVMEM_SHIFT	5
 
@@ -208,7 +206,7 @@  static int sun50i_cpufreq_get_efuse(void)
 static int sun50i_cpufreq_nvmem_probe(struct platform_device *pdev)
 {
 	int *opp_tokens;
-	char name[MAX_NAME_LEN];
+	char name[] = "speedXXXXXXXXXXX"; /* Integers can take 11 chars max */
 	unsigned int cpu, supported_hw;
 	struct dev_pm_opp_config config = {};
 	int speed;
@@ -235,7 +233,7 @@  static int sun50i_cpufreq_nvmem_probe(struct platform_device *pdev)
 		config.supported_hw_count = 1;
 	}
 
-	snprintf(name, MAX_NAME_LEN, "speed%d", speed);
+	snprintf(name, sizeof(name), "speed%d", speed);
 	config.prop_name = name;
 
 	for_each_possible_cpu(cpu) {