From: Juergen Gross <jgross@suse.com>
Date: Wed, 23 Aug 2017 17:36:00 +0000 (+0200)
Subject: xen/arch/arm/acpi/boot.c: let custom parameter parsing routines return errno
X-Git-Tag: 4.10.0-rc1~516
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=73ca07272ee7ceecacbb52374375a05b26172f28;p=xen.git

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.

Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Julien Grall <julien.grall@arm.com>
---

diff --git a/xen/arch/arm/acpi/boot.c b/xen/arch/arm/acpi/boot.c
index a5a6f55f0e..6101bf39c9 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(const char *arg)
 {
     if ( !arg )
-        return;
+        return -EINVAL;
 
     /* Interpret the parameter for use within Xen. */
     if ( !parse_bool(arg, NULL) )
         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);