[PATCH] init: Replace simple_strtoul() with kstrtouint() in root_delay_setup()

[Kaushlendra Kumar <kaushlendra.kumar@intel.com>]

Replace deprecated simple_strtoul() with kstrtouint() for better error
handling and input validation. Return 0 on parsing failure to indicate
invalid parameter, maintaining existing behavior for valid inputs.

The simple_strtoul() function is deprecated in favor of kstrtoint()
family functions which provide better error handling and are recommended
for new code and replacements.

Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com>
---
 init/do_mounts.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/init/do_mounts.c b/init/do_mounts.c
index 3c5fd993bc7e..3284226f7a2a 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -120,7 +120,8 @@ static int __init fs_names_setup(char *str)
 static unsigned int __initdata root_delay;
 static int __init root_delay_setup(char *str)
 {
-	root_delay = simple_strtoul(str, NULL, 0);
+	if (kstrtouint(str, 0, &root_delay))
+		return 0;
 	return 1;
 }
 
-- 
2.34.1