printk: use strscpy() to instead of strlcpy()

The implementation of strscpy() is more robust and safer.
That's now the recommended way to copy NUL terminated strings.

Signed-off-by: Xu Panda <xu.panda@zte.com.cn>
Signed-off-by: Yang Yang <yang.yang29@zte.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/202211301601416229001@zte.com.cn

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index e4f1e74..eec87dd 100644 (file)
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -2391,7 +2391,7 @@ static int __add_preferred_console(char *name, int idx, char *options,
                return -E2BIG;
        if (!brl_options)
                preferred_console = i;
-       strlcpy(c->name, name, sizeof(c->name));
+       strscpy(c->name, name, sizeof(c->name));
        c->options = options;
        set_user_specified(c, user_specified);
        braille_set_options(c, brl_options);