From: Juergen Gross <jgross@suse.com>
Date: Wed, 23 Aug 2017 17:34:00 +0000 (+0200)
Subject: xen/common/domain.c: let custom parameter parsing routines return errno
X-Git-Tag: 4.10.0-rc1~494
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=95ee65d17ae6f8e9ee3e488962b47d0874afca13;p=xen.git

xen/common/domain.c: let custom parameter parsing routines return errno

Modify the custom parameter parsing routines in:

xen/common/domain.c

to indicate whether the parameter value was parsed successfully.

Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
---

diff --git a/xen/common/domain.c b/xen/common/domain.c
index b22aacc57e..acd420a1a5 100644
--- a/xen/common/domain.c
+++ b/xen/common/domain.c
@@ -245,12 +245,15 @@ static int late_hwdom_init(struct domain *d)
 
 static unsigned int __read_mostly extra_hwdom_irqs;
 static unsigned int __read_mostly extra_domU_irqs = 32;
-static void __init parse_extra_guest_irqs(const char *s)
+
+static int __init parse_extra_guest_irqs(const char *s)
 {
     if ( isdigit(*s) )
         extra_domU_irqs = simple_strtoul(s, &s, 0);
     if ( *s == ',' && isdigit(*++s) )
         extra_hwdom_irqs = simple_strtoul(s, &s, 0);
+
+    return *s ? -EINVAL : 0;
 }
 custom_param("extra_guest_irqs", parse_extra_guest_irqs);