[PATCH] profile.c: `schedule' parsing fix

profile=schedule parsing is not quite what it should be.  First, str[7] is
'e', not ',', but then even if it did fall through, prof_on =
SCHED_PROFILING would be clobbered inside if (get_option(...)) So a small
amount of rearrangement is done in this patch to correct it.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 10 insertions, 6 deletions

diff --git a/kernel/profile.c b/kernel/profile.c
index 0221a50ca867..ad8cbb75ffa2 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -49,15 +49,19 @@ static DECLARE_MUTEX(profile_flip_mutex);
 
 static int __init profile_setup(char * str)
 {
+        static char __initdata schedstr[] = "schedule";
         int par;
 
-        if (!strncmp(str, "schedule", 8)) {
+        if (!strncmp(str, schedstr, strlen(schedstr))) {
                 prof_on = SCHED_PROFILING;
-                printk(KERN_INFO "kernel schedule profiling enabled\n");
-                if (str[7] == ',')
-                        str += 8;
-        }
-        if (get_option(&str,&par)) {
+                if (str[strlen(schedstr)] == ',')
+                        str += strlen(schedstr) + 1;
+                if (get_option(&str, &par))
+                        prof_shift = par;
+                printk(KERN_INFO
+                        "kernel schedule profiling enabled (shift: %ld)\n",
+                        prof_shift);
+        } else if (get_option(&str, &par)) {
                 prof_shift = par;
                 prof_on = CPU_PROFILING;
                 printk(KERN_INFO "kernel profiling enabled (shift: %ld)\n",