[PATCH] init/main.c: refactor maxcpus()

[Namhyung Kim <namhyung@gmail.com>]

get_option() requires 2nd arg to be a pointer to int but setup_max_cpus is a
pointer to unsigned int. Use max_cpus instead and update setup_max_cpus only
if given value is in the proper range.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
---
 init/main.c |   10 +++++++---
 1 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/init/main.c b/init/main.c
index 86cbfd0..b06b8f2 100644
--- a/init/main.c
+++ b/init/main.c
@@ -165,9 +165,13 @@ early_param("nr_cpus", nrcpus);
 
 static int __init maxcpus(char *str)
 {
-	get_option(&str, &setup_max_cpus);
-	if (setup_max_cpus == 0)
-		arch_disable_smp_support();
+	int max_cpus;
+
+	get_option(&str, &max_cpus);
+	if (max_cpus == 0)
+		nosmp(NULL);
+	else if (0 < max_cpus && max_cpus < NR_CPUS)
+		setup_max_cpus = max_cpus;
 
 	return 0;
 }
-- 
1.7.0.4