Messages in this thread Patch in this message | | | From | Viresh Kumar <> | Subject | [PATCH] cpufreq: sun50i: Fix build warning around snprint() | Date | Mon, 22 Apr 2024 09:01:09 +0530 |
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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 --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) { -- 2.31.1.272.g89b43f80a514
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