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OPP: debugfs: Fix warning with W=1 builds

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We currently get the following warning:

debugfs.c:105:54: error: '%d' directive output may be truncated writing between 1 and 11 bytes into a region of size 8 [-Werror=format-truncation=]
                 snprintf(name, sizeof(name), "supply-%d", i);
                                                      ^~
debugfs.c:105:46: note: directive argument in the range [-2147483644, 2147483646]
                 snprintf(name, sizeof(name), "supply-%d", i);
                                              ^~~~~~~~~~~
debugfs.c:105:17: note: 'snprintf' output between 9 and 19 bytes into a destination of size 15
                 snprintf(name, sizeof(name), "supply-%d", i);

Fix this and other potential issues it by allocating larger arrays.
Use the exact string format to allocate the arrays without getting into
these issues again.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202402141313.81ltVF5g-lkp@intel.com/
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
This commit is contained in:
Viresh Kumar 2023-09-27 16:28:16 +05:30
parent 838a4772bf
commit 992e883359
1 changed files with 4 additions and 4 deletions
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8
drivers/opp/debugfs.c
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@ -56,11 +56,11 @@ static void opp_debug_create_bw(struct dev_pm_opp *opp,
struct dentry *pdentry)
{
struct dentry *d;
char name[20];
char name[] = "icc-path-XXXXXXXXXXX"; /* Integers can take 11 chars max */
int i;
for (i = 0; i < opp_table->path_count; i++) {
snprintf(name, sizeof(name), "icc-path-%.1d", i);
snprintf(name, sizeof(name), "icc-path-%d", i);
/* Create per-path directory */
d = debugfs_create_dir(name, pdentry);
@ -78,7 +78,7 @@ static void opp_debug_create_clks(struct dev_pm_opp *opp,
struct opp_table *opp_table,
struct dentry *pdentry)
{
char name[12];
char name[] = "rate_hz_XXXXXXXXXXX"; /* Integers can take 11 chars max */
int i;
if (opp_table->clk_count == 1) {
@ -100,7 +100,7 @@ static void opp_debug_create_supplies(struct dev_pm_opp *opp,
int i;
for (i = 0; i < opp_table->regulator_count; i++) {
char name[15];
char name[] = "supply-XXXXXXXXXXX"; /* Integers can take 11 chars max */
snprintf(name, sizeof(name), "supply-%d", i);