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[Xen-devel] [PATCH 28/52] xen/common/sched_credit2.c: let custom parameter parsing routines return errno



Modify the custom parameter parsing routines in:

xen/common/sched_credit2.c

to indicate whether the parameter value was parsed successfully.

Cc: George Dunlap <george.dunlap@xxxxxxxxxxxxx>
Cc: Dario Faggioli <dario.faggioli@xxxxxxxxxx>
Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
---
 xen/common/sched_credit2.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/xen/common/sched_credit2.c b/xen/common/sched_credit2.c
index 29c002a63e..9b1db1351f 100644
--- a/xen/common/sched_credit2.c
+++ b/xen/common/sched_credit2.c
@@ -339,7 +339,7 @@ static const char *const opt_runqueue_str[] = {
 };
 static int __read_mostly opt_runqueue = OPT_RUNQUEUE_SOCKET;
 
-static void parse_credit2_runqueue(const char *s)
+static int parse_credit2_runqueue(const char *s)
 {
     unsigned int i;
 
@@ -348,11 +348,13 @@ static void parse_credit2_runqueue(const char *s)
         if ( !strcmp(s, opt_runqueue_str[i]) )
         {
             opt_runqueue = i;
-            return;
+            return 0;
         }
     }
 
     printk("WARNING, unrecognized value of credit2_runqueue option!\n");
+
+    return -EINVAL;
 }
 custom_param("credit2_runqueue", parse_credit2_runqueue);
 
-- 
2.12.3


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