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OPP: debugfs: Fix warning around icc_get_name()

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If the kernel isn't built with interconnect support, icc_get_name()
returns NULL and we get following warning:

drivers/opp/debugfs.c: In function 'bw_name_read':
drivers/opp/debugfs.c:43:42: error: '%.62s' directive argument is null [-Werror=format-overflow=]
         i = scnprintf(buf, sizeof(buf), "%.62s\n", icc_get_name(path));

Fix it.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202402141313.81ltVF5g-lkp@intel.com/
Fixes: 0430b1d570 ("opp: Expose bandwidth information via debugfs")
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
This commit is contained in:
Viresh Kumar 2024-03-04 16:48:28 +05:30
parent 992e883359
commit 28330ceb95
1 changed files with 4 additions and 2 deletions
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6
drivers/opp/debugfs.c
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@ -37,10 +37,12 @@ static ssize_t bw_name_read(struct file *fp, char __user *userbuf,
size_t count, loff_t *ppos)
{
struct icc_path *path = fp->private_data;
const char *name = icc_get_name(path);
char buf[64];
int i;
int i = 0;
i = scnprintf(buf, sizeof(buf), "%.62s\n", icc_get_name(path));
if (name)
i = scnprintf(buf, sizeof(buf), "%.62s\n", name);
return simple_read_from_buffer(userbuf, count, ppos, buf, i);
}