diff options
Diffstat (limited to 'hid-tmt248.c')
| -rw-r--r-- | hid-tmt248.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/hid-tmt248.c b/hid-tmt248.c index 839f670..aef2944 100644 --- a/hid-tmt248.c +++ b/hid-tmt248.c @@ -133,6 +133,7 @@ static int t248_interrupts(struct t300rs_device_entry *t248) struct usb_interface *usbif = to_usb_interface(t248->hdev->dev.parent); struct usb_host_endpoint *ep; int ret, trans, b_ep, i; + if (!send_buf) { hid_err(t248->hdev, "failed allocating send buffer\n"); return -ENOMEM; @@ -167,6 +168,7 @@ int t248_wheel_init(struct tmff2_device_entry *tmff2) struct list_head *report_list; int ret; + if (!t248) { ret = -ENOMEM; goto t248_err; @@ -213,6 +215,7 @@ t248_err: int t248_wheel_destroy(void *data) { struct t300rs_device_entry *t300rs = data; + if (!t300rs) return -ENODEV; @@ -224,6 +227,7 @@ int t248_wheel_destroy(void *data) int t248_set_range(void *data, uint16_t value) { struct t300rs_device_entry *t248 = data; + if (value < 140) { hid_info(t248->hdev, "value %i too small, clamping to 140\n", value); value = 140; @@ -240,6 +244,7 @@ int t248_set_range(void *data, uint16_t value) static int t248_open(void *data) { struct t300rs_device_entry *t248 = data; + if (!t248) return -ENODEV; @@ -254,21 +259,20 @@ static int t248_open(void *data) return t248->open(t248->input_dev); } -static int t248_close(void *data, int dev_accessible) +static int t248_close(void *data) { struct t300rs_device_entry *t248 = data; + if (!t248) return -ENODEV; - if (dev_accessible) { - t248->send_buffer[0] = 0x01; - t248->send_buffer[1] = 0x05; - t300rs_send_int(t248); + t248->send_buffer[0] = 0x01; + t248->send_buffer[1] = 0x05; + t300rs_send_int(t248); - t248->send_buffer[0] = 0x01; - t248->send_buffer[1] = 0x00; - t300rs_send_int(t248); - } + t248->send_buffer[0] = 0x01; + t248->send_buffer[1] = 0x00; + t300rs_send_int(t248); t248->close(t248->input_dev); return 0; |