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[Xen-devel] [PATCH 01/52] xen/arch/arm/acpi/boot.c: let custom parameter parsing routines return errno



Modify the custom parameter parsing routines in:

xen/arch/arm/acpi/boot.c

to indicate whether the parameter value was parsed successfully.

Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>
Cc: Julien Grall <julien.grall@xxxxxxx>
Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
---
 xen/arch/arm/acpi/boot.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/xen/arch/arm/acpi/boot.c b/xen/arch/arm/acpi/boot.c
index 889208a0ea..0b90cf3a15 100644
--- a/xen/arch/arm/acpi/boot.c
+++ b/xen/arch/arm/acpi/boot.c
@@ -193,16 +193,20 @@ static int __init acpi_parse_fadt(struct 
acpi_table_header *table)
 static bool_t __initdata param_acpi_off;
 static bool_t __initdata param_acpi_force;
 
-static void __init parse_acpi_param(char *arg)
+static int __init parse_acpi_param(char *arg)
 {
     if ( !arg )
-        return;
+        return -EINVAL;
 
     /* Interpret the parameter for use within Xen. */
     if ( !parse_bool(arg) )
         param_acpi_off = true;
     else if ( !strcmp(arg, "force") ) /* force ACPI to be enabled */
         param_acpi_force = true;
+    else
+        return -EINVAL;
+
+    return 0;
 }
 custom_param("acpi", parse_acpi_param);
 
-- 
2.12.3


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