[PATCH] OPP: debugfs: Fix warning with W=1 builds

From: Viresh Kumar
Date: Mon Mar 04 2024 - 02:21:05 EST


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 another potential issue it by increasing size of the arrays.

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202402141313.81ltVF5g-lkp@xxxxxxxxx/
Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
---
drivers/opp/debugfs.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/opp/debugfs.c b/drivers/opp/debugfs.c
index ec030b19164a..96313aa55db6 100644
--- a/drivers/opp/debugfs.c
+++ b/drivers/opp/debugfs.c
@@ -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[19];
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[19];

snprintf(name, sizeof(name), "supply-%d", i);

--
2.31.1.272.g89b43f80a514