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path: root/drivers/media/dvb/dvb-usb/dvb-usb-urb.c
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Diffstat (limited to 'drivers/media/dvb/dvb-usb/dvb-usb-urb.c')
-rw-r--r--drivers/media/dvb/dvb-usb/dvb-usb-urb.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-urb.c b/drivers/media/dvb/dvb-usb/dvb-usb-urb.c
index 5cef12a07f72..6fe71c6745eb 100644
--- a/drivers/media/dvb/dvb-usb/dvb-usb-urb.c
+++ b/drivers/media/dvb/dvb-usb/dvb-usb-urb.c
@@ -13,14 +13,14 @@ int dvb_usb_generic_rw(struct dvb_usb_device *d, u8 *wbuf, u16 wlen, u8 *rbuf,
13{ 13{
14 int actlen,ret = -ENOMEM; 14 int actlen,ret = -ENOMEM;
15 15
16 if (!d || wbuf == NULL || wlen == 0)
17 return -EINVAL;
18
16 if (d->props.generic_bulk_ctrl_endpoint == 0) { 19 if (d->props.generic_bulk_ctrl_endpoint == 0) {
17 err("endpoint for generic control not specified."); 20 err("endpoint for generic control not specified.");
18 return -EINVAL; 21 return -EINVAL;
19 } 22 }
20 23
21 if (wbuf == NULL || wlen == 0)
22 return -EINVAL;
23
24 if ((ret = mutex_lock_interruptible(&d->usb_mutex))) 24 if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
25 return ret; 25 return ret;
26 26