From: Juergen Gross <jgross@suse.com>
Date: Wed, 23 Aug 2017 17:34:00 +0000 (+0200)
Subject: xen/common/memory.c: let custom parameter parsing routines return errno
X-Git-Tag: archive/raspbian/4.11.1-1+rpi1~1^2~66^2~1579
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/%22/%22http:/www.example.com/cgi/%22?a=commitdiff_plain;h=7471d395d98ba2e149072f74110303db72f2a7db;p=xen.git

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

Modify the custom parameter parsing routines in:

xen/common/memory.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/memory.c b/xen/common/memory.c
index b2066db07e..26da6050f6 100644
--- a/xen/common/memory.c
+++ b/xen/common/memory.c
@@ -55,7 +55,8 @@ static unsigned int __read_mostly hwdom_max_order = CONFIG_HWDOM_MAX_ORDER;
 #ifdef HAS_PASSTHROUGH
 static unsigned int __read_mostly ptdom_max_order = CONFIG_PTDOM_MAX_ORDER;
 #endif
-static void __init parse_max_order(const char *s)
+
+static int __init parse_max_order(const char *s)
 {
     if ( *s != ',' )
         domu_max_order = simple_strtoul(s, &s, 0);
@@ -67,6 +68,8 @@ static void __init parse_max_order(const char *s)
     if ( *s == ',' && *++s != ',' )
         ptdom_max_order = simple_strtoul(s, &s, 0);
 #endif
+
+    return *s ? -EINVAL : 0;
 }
 custom_param("memop-max-order", parse_max_order);