x86: kernel/dumpstack.c simple_strtoul cleanup

[firefly-linux-kernel-4.4.55.git] / arch / x86 / kernel / dumpstack.c

diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index 1b81839b6c8890f261e486429db51f37a9c68042..b154f6d99058c7e673922865536cbf0166c09a68 100644 (file)
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -311,16 +311,33 @@ void die(const char *str, struct pt_regs *regs, long err)
 
 static int __init kstack_setup(char *s)
 {
+       ssize_t ret;
+       unsigned long val;
+
        if (!s)
                return -EINVAL;
-       kstack_depth_to_print = simple_strtoul(s, NULL, 0);
+
+       ret = kstrtoul(s, 0, &val);
+       if (ret)
+               return ret;
+       kstack_depth_to_print = val;
        return 0;
 }
 early_param("kstack", kstack_setup);
 
 static int __init code_bytes_setup(char *s)
 {
-       code_bytes = simple_strtoul(s, NULL, 0);
+       ssize_t ret;
+       unsigned long val;
+
+       if (!s)
+               return -EINVAL;
+
+       ret = kstrtoul(s, 0, &val);
+       if (ret)
+               return ret;
+
+       code_bytes = val;
        if (code_bytes > 8192)
                code_bytes = 8192;