From: Vincent Hanquez <vincent.hanquez@eu.citrix.com>
Date: Tue, 25 Aug 2009 16:44:17 +0000 (+0100)
Subject: add proper error if the hypercall failed to get sstate
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=e2116253796e2f572252ce02380077eeeb8be50d;p=xenclient%2Ftoolstack.git

add proper error if the hypercall failed to get sstate
---

diff --git a/libs/xc/xc_lib.c b/libs/xc/xc_lib.c
index 8c33508..833af8b 100644
--- a/libs/xc/xc_lib.c
+++ b/libs/xc/xc_lib.c
@@ -1492,7 +1492,11 @@ int xc_domain_set_vpt_align(int handle, unsigned int domid, int vpt_align)
 
 int xc_domain_get_acpi_s_state(int handle, unsigned int domid)
 {
-	unsigned long v;
-	xc_get_hvm_param(handle, domid, HVM_PARAM_ACPI_S_STATE, &v);
-	return v;
+	int ret;
+	unsigned long value;
+
+	ret = xc_get_hvm_param(handle, domid, HVM_PARAM_ACPI_S_STATE, &value);
+	if (ret != 0)
+		xc_error_dom_set(domid, "get acpi s-state");
+	return value;
 }