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relay: use kasprintf() instead of fixed buffer formatting

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Improve readability and maintainability by replacing a hard coded string
allocation and formatting by using the kasprintf() helper.

It also eliminates the GCC compiler warning (with CONFIG_WERROR=y, which
is default, it becomes an error:

kernel/relay.c:357:42: error: `snprintf' output may be truncated before the last format character [-Werror=format-truncation=]

Link: https://lkml.kernel.org/r/20250317212948.1811176-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Andy Shevchenko 2025-03-17 23:29:47 +02:00 committed by Andrew Morton
parent 48376a4fa6
commit 81ca2970b7
1 changed files with 1 additions and 2 deletions
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3
kernel/relay.c
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@ -351,10 +351,9 @@ static struct dentry *relay_create_buf_file(struct rchan *chan,
struct dentry *dentry;
char *tmpname;
tmpname = kzalloc(NAME_MAX + 1, GFP_KERNEL);
tmpname = kasprintf(GFP_KERNEL, "%s%d", chan->base_filename, cpu);
if (!tmpname)
return NULL;
snprintf(tmpname, NAME_MAX, "%s%d", chan->base_filename, cpu);
/* Create file in fs */
dentry = chan->cb->create_buf_file(tmpname, chan->parent,