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path: root/kernel/drivers/tty/hvc/hvc_dcc.c
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Diffstat (limited to 'kernel/drivers/tty/hvc/hvc_dcc.c')
-rw-r--r--kernel/drivers/tty/hvc/hvc_dcc.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/kernel/drivers/tty/hvc/hvc_dcc.c b/kernel/drivers/tty/hvc/hvc_dcc.c
index 809920d80..82f240fb9 100644
--- a/kernel/drivers/tty/hvc/hvc_dcc.c
+++ b/kernel/drivers/tty/hvc/hvc_dcc.c
@@ -70,20 +70,27 @@ static const struct hv_ops hvc_dcc_get_put_ops = {
static int __init hvc_dcc_console_init(void)
{
+ int ret;
+
if (!hvc_dcc_check())
return -ENODEV;
- hvc_instantiate(0, 0, &hvc_dcc_get_put_ops);
- return 0;
+ /* Returns -1 if error */
+ ret = hvc_instantiate(0, 0, &hvc_dcc_get_put_ops);
+
+ return ret < 0 ? -ENODEV : 0;
}
console_initcall(hvc_dcc_console_init);
static int __init hvc_dcc_init(void)
{
+ struct hvc_struct *p;
+
if (!hvc_dcc_check())
return -ENODEV;
- hvc_alloc(0, 0, &hvc_dcc_get_put_ops, 128);
- return 0;
+ p = hvc_alloc(0, 0, &hvc_dcc_get_put_ops, 128);
+
+ return PTR_ERR_OR_ZERO(p);
}
device_initcall(hvc_dcc_init);