diff mbox

[27/52] xen/common/memory.c: let custom parameter parsing routines return errno

Message ID 20170809070706.13481-28-jgross@suse.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jürgen Groß Aug. 9, 2017, 7:06 a.m. UTC 
Modify the custom parameter parsing routines in:

xen/common/memory.c

to indicate whether the parameter value was parsed successfully.

Cc: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: George Dunlap <George.Dunlap@eu.citrix.com>
Cc: Ian Jackson <ian.jackson@eu.citrix.com>
Cc: Jan Beulich <jbeulich@suse.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Tim Deegan <tim@xen.org>
Cc: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
---
 xen/common/memory.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/xen/common/memory.c b/xen/common/memory.c
index b2066db07e..87a33c0e62 100644
--- a/xen/common/memory.c
+++ b/xen/common/memory.c
@@ -55,7 +55,7 @@  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 +67,8 @@  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);