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| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-01-20 14:01:31 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-01-20 14:01:31 -0300 |
| commit | b4b7ff4b08e691656c9d77c758fc355833128ac0 (patch) | |
| tree | 82fcb00e6b918026dc9f2d1f05ed8eee83874cc0 /drivers/tty/hvc/hvc_dcc.c | |
| parent | 35acfa0fc609f2a2cd95cef4a6a9c3a5c38f1778 (diff) | |
Linux-libre 4.4-gnupck-4.4-gnu
Diffstat (limited to 'drivers/tty/hvc/hvc_dcc.c')
| -rw-r--r-- | drivers/tty/hvc/hvc_dcc.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/tty/hvc/hvc_dcc.c b/drivers/tty/hvc/hvc_dcc.c index 809920d80..82f240fb9 100644 --- a/drivers/tty/hvc/hvc_dcc.c +++ b/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); |