From: Juergen Gross <jgross@suse.com>
Date: Wed, 23 Aug 2017 17:34:00 +0000 (+0200)
Subject: xen/arch/x86/cpu/mcheck/mce.c: let custom parameter parsing routines return errno
X-Git-Tag: archive/raspbian/4.11.1-1+rpi1~1^2~66^2~1600
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=5bf030b2fd84c80cbdee9ddc3ffa433f065c2f1d;p=xen.git

xen/arch/x86/cpu/mcheck/mce.c: let custom parameter parsing routines return errno

Modify the custom parameter parsing routines in:

xen/arch/x86/cpu/mcheck/mce.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/arch/x86/cpu/mcheck/mce.c b/xen/arch/x86/cpu/mcheck/mce.c
index 30525dd78b..8015dff8c4 100644
--- a/xen/arch/x86/cpu/mcheck/mce.c
+++ b/xen/arch/x86/cpu/mcheck/mce.c
@@ -62,13 +62,18 @@ struct mca_banks *mca_allbanks;
 #endif
 
 int mce_verbosity;
-static void __init mce_set_verbosity(char *str)
+static int __init mce_set_verbosity(const char *str)
 {
     if (strcmp("verbose", str) == 0)
         mce_verbosity = MCE_VERBOSE;
     else
+    {
         printk(KERN_DEBUG "Machine Check verbosity level %s not recognised"
                "use mce_verbosity=verbose", str);
+        return -EINVAL;
+    }
+
+    return 0;
 }
 custom_param("mce_verbosity", mce_set_verbosity);