diff options
| author | Alex Shi <alex.shi@linaro.org> | 2017-05-31 12:02:43 +0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2017-05-31 12:02:43 +0800 |
| commit | a898540914d4136f29bc738ce593c1c501006f23 (patch) | |
| tree | 9440b7f76c029143611c89ed919718ba6ff353f4 /drivers/media/usb/cx231xx/cx231xx-cards.c | |
| parent | d97f745e1d2fea4d2f308e5e06eee81a9a84f3f5 (diff) | |
| parent | 56d847e3ef9433d7ac92376e4ba49d3cf3cb70d2 (diff) | |
Merge tag 'v4.1.40' into linux-linaro-lsk-v4.1lsk-v4.1-17.06lsk-v4.1-17.05linux-linaro-lsk-v4.1
This is the 4.1.40 stable release
Diffstat (limited to 'drivers/media/usb/cx231xx/cx231xx-cards.c')
| -rw-r--r-- | drivers/media/usb/cx231xx/cx231xx-cards.c | 45 |
1 files changed, 40 insertions, 5 deletions
diff --git a/drivers/media/usb/cx231xx/cx231xx-cards.c b/drivers/media/usb/cx231xx/cx231xx-cards.c index fe00da105e77..3503fcef7b51 100644 --- a/drivers/media/usb/cx231xx/cx231xx-cards.c +++ b/drivers/media/usb/cx231xx/cx231xx-cards.c @@ -1411,6 +1411,9 @@ static int cx231xx_init_v4l2(struct cx231xx *dev, uif = udev->actconfig->interface[idx]; + if (uif->altsetting[0].desc.bNumEndpoints < isoc_pipe + 1) + return -ENODEV; + dev->video_mode.end_point_addr = uif->altsetting[0].endpoint[isoc_pipe].desc.bEndpointAddress; dev->video_mode.num_alt = uif->num_altsetting; @@ -1424,7 +1427,12 @@ static int cx231xx_init_v4l2(struct cx231xx *dev, return -ENOMEM; for (i = 0; i < dev->video_mode.num_alt; i++) { - u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].desc.wMaxPacketSize); + u16 tmp; + + if (uif->altsetting[i].desc.bNumEndpoints < isoc_pipe + 1) + return -ENODEV; + + tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].desc.wMaxPacketSize); dev->video_mode.alt_max_pkt_size[i] = (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); dev_dbg(dev->dev, "Alternate setting %i, max size= %i\n", i, @@ -1441,6 +1449,9 @@ static int cx231xx_init_v4l2(struct cx231xx *dev, } uif = udev->actconfig->interface[idx]; + if (uif->altsetting[0].desc.bNumEndpoints < isoc_pipe + 1) + return -ENODEV; + dev->vbi_mode.end_point_addr = uif->altsetting[0].endpoint[isoc_pipe].desc. bEndpointAddress; @@ -1457,8 +1468,12 @@ static int cx231xx_init_v4l2(struct cx231xx *dev, return -ENOMEM; for (i = 0; i < dev->vbi_mode.num_alt; i++) { - u16 tmp = - le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe]. + u16 tmp; + + if (uif->altsetting[i].desc.bNumEndpoints < isoc_pipe + 1) + return -ENODEV; + + tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe]. desc.wMaxPacketSize); dev->vbi_mode.alt_max_pkt_size[i] = (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); @@ -1478,6 +1493,9 @@ static int cx231xx_init_v4l2(struct cx231xx *dev, } uif = udev->actconfig->interface[idx]; + if (uif->altsetting[0].desc.bNumEndpoints < isoc_pipe + 1) + return -ENODEV; + dev->sliced_cc_mode.end_point_addr = uif->altsetting[0].endpoint[isoc_pipe].desc. bEndpointAddress; @@ -1492,7 +1510,12 @@ static int cx231xx_init_v4l2(struct cx231xx *dev, return -ENOMEM; for (i = 0; i < dev->sliced_cc_mode.num_alt; i++) { - u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe]. + u16 tmp; + + if (uif->altsetting[i].desc.bNumEndpoints < isoc_pipe + 1) + return -ENODEV; + + tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe]. desc.wMaxPacketSize); dev->sliced_cc_mode.alt_max_pkt_size[i] = (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); @@ -1657,6 +1680,11 @@ static int cx231xx_usb_probe(struct usb_interface *interface, } uif = udev->actconfig->interface[idx]; + if (uif->altsetting[0].desc.bNumEndpoints < isoc_pipe + 1) { + retval = -ENODEV; + goto err_video_alt; + } + dev->ts1_mode.end_point_addr = uif->altsetting[0].endpoint[isoc_pipe]. desc.bEndpointAddress; @@ -1674,7 +1702,14 @@ static int cx231xx_usb_probe(struct usb_interface *interface, } for (i = 0; i < dev->ts1_mode.num_alt; i++) { - u16 tmp = le16_to_cpu(uif->altsetting[i]. + u16 tmp; + + if (uif->altsetting[i].desc.bNumEndpoints < isoc_pipe + 1) { + retval = -ENODEV; + goto err_video_alt; + } + + tmp = le16_to_cpu(uif->altsetting[i]. endpoint[isoc_pipe].desc. wMaxPacketSize); dev->ts1_mode.alt_max_pkt_size[i] = |