[kvm-unit-tests PATCH 3/7] lib: chr-testdev: Make chr_testdev_init() return status

[Alexandru Elisei <alexandru.elisei@arm.com>]

Make chr_testdev_init() return 0 (success) if the virtio console was
initialized properly, otherwise return -1 (failure).

Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com>
---
 lib/chr-testdev.h | 2 +-
 lib/chr-testdev.c | 8 +++++---
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/lib/chr-testdev.h b/lib/chr-testdev.h
index ffd9a851aa9b..fdd0582e2da1 100644
--- a/lib/chr-testdev.h
+++ b/lib/chr-testdev.h
@@ -9,6 +9,6 @@
  *
  * This work is licensed under the terms of the GNU LGPL, version 2.
  */
-extern void chr_testdev_init(void);
+extern int chr_testdev_init(void);
 extern void chr_testdev_exit(int code);
 #endif
diff --git a/lib/chr-testdev.c b/lib/chr-testdev.c
index 6890f63c8b29..26e14301e3db 100644
--- a/lib/chr-testdev.c
+++ b/lib/chr-testdev.c
@@ -47,7 +47,7 @@ out:
 	spin_unlock(&lock);
 }
 
-void chr_testdev_init(void)
+int chr_testdev_init(void)
 {
 	const char *io_names[] = { "input", "output" };
 	struct virtqueue *vqs[2];
@@ -57,7 +57,7 @@ void chr_testdev_init(void)
 	if (vcon == NULL) {
 		printf("%s: %s: can't find a virtio-console\n",
 				__func__, TESTDEV_NAME);
-		return;
+		return -1;
 	}
 
 	ret = vcon->config->find_vqs(vcon, 2, vqs, NULL, io_names);
@@ -65,9 +65,11 @@ void chr_testdev_init(void)
 		printf("%s: %s: can't init virtqueues\n",
 				__func__, TESTDEV_NAME);
 		vcon = NULL;
-		return;
+		return -1;
 	}
 
 	in_vq = vqs[0];
 	out_vq = vqs[1];
+
+	return 0;
 }
-- 
2.17.0