linux-kernel - [PATCH 1/6] kvm tools: Return error status in lkvm list

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Date:	Wed,  6 Feb 2013 19:19:11 +1100
From:	Michael Ellerman <michael@...erman.id.au>
To:	<penberg@...nel.org>
Cc:	<kvm@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/6] kvm tools: Return error status in lkvm list

Currently list always returns 0, even if there was an error. Instead
have it accumulate any errors and return that.

Signed-off-by: Michael Ellerman <michael@...erman.id.au>
---
 tools/kvm/builtin-list.c |   10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/tools/kvm/builtin-list.c b/tools/kvm/builtin-list.c
index 9299f17..c35be93 100644
--- a/tools/kvm/builtin-list.c
+++ b/tools/kvm/builtin-list.c
@@ -123,7 +123,7 @@ static void parse_setup_options(int argc, const char **argv)
 
 int kvm_cmd_list(int argc, const char **argv, const char *prefix)
 {
-	int r;
+	int status, r;
 
 	parse_setup_options(argc, argv);
 
@@ -133,17 +133,23 @@ int kvm_cmd_list(int argc, const char **argv, const char *prefix)
 	printf("%6s %-20s %s\n", "PID", "NAME", "STATE");
 	printf("------------------------------------\n");
 
+	status = 0;
+
 	if (run) {
 		r = kvm_list_running_instances();
 		if (r < 0)
 			perror("Error listing instances");
+
+		status |= r;
 	}
 
 	if (rootfs) {
 		r = kvm_list_rootfs();
 		if (r < 0)
 			perror("Error listing rootfs");
+
+		status |= r;
 	}
 
-	return 0;
+	return status;
 }
-- 
1.7.10.4

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