[PATCH v2 17/52] xen/arch/x86/oprofile/nmi_int.c: let custom parameter parsing routines return errno

[Juergen Gross <jgross@suse.com>]

Modify the custom parameter parsing routines in:

xen/arch/x86/oprofile/nmi_int.c

to indicate whether the parameter value was parsed successfully.

Cc: Jan Beulich <jbeulich@suse.com>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
---
 xen/arch/x86/oprofile/nmi_int.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/xen/arch/x86/oprofile/nmi_int.c b/xen/arch/x86/oprofile/nmi_int.c
index 126f7a8d9f..91965ac7df 100644
--- a/xen/arch/x86/oprofile/nmi_int.c
+++ b/xen/arch/x86/oprofile/nmi_int.c
@@ -329,6 +329,8 @@ static int force_cpu_type(const char *str)
 		force_arch_perfmon = 1;
 		printk(KERN_INFO "oprofile: forcing architectural perfmon\n");
 	}
+	else
+		return -EINVAL;
 
 	return 0;
 }
-- 
2.12.3


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