diff options
| author | Wolfram Sang <wsa@the-dreams.de> | 2017-10-26 22:24:15 +0200 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2017-10-26 22:24:15 +0200 |
| commit | 3990bedea6e96cb1f182dbeadd62215dbb9e1c85 (patch) | |
| tree | 90ac0ab8ae1d4339dc17eb42a853042ea06d6b13 /drivers/usb/core/config.c | |
| parent | 631de7a4603439eaa1d7a2a1a7b5b49edcd87f67 (diff) | |
| parent | 3997fb74846f35d0364c5e88e54bc9b166d5a1bc (diff) | |
Merge branch 'i2c-mux/for-next' of https://github.com/peda-r/i2c-mux into i2c/for-4.15
This cycle has been real quiet for me. There's only the one trivial
patch that somewhat simplifies DT parsing in the i2c-mux-reg driver.
Diffstat (limited to 'drivers/usb/core/config.c')
| -rw-r--r-- | drivers/usb/core/config.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c index 4be52c602e9b..68b54bd88d1e 100644 --- a/drivers/usb/core/config.c +++ b/drivers/usb/core/config.c @@ -643,15 +643,23 @@ static int usb_parse_configuration(struct usb_device *dev, int cfgidx, } else if (header->bDescriptorType == USB_DT_INTERFACE_ASSOCIATION) { + struct usb_interface_assoc_descriptor *d; + + d = (struct usb_interface_assoc_descriptor *)header; + if (d->bLength < USB_DT_INTERFACE_ASSOCIATION_SIZE) { + dev_warn(ddev, + "config %d has an invalid interface association descriptor of length %d, skipping\n", + cfgno, d->bLength); + continue; + } + if (iad_num == USB_MAXIADS) { dev_warn(ddev, "found more Interface " "Association Descriptors " "than allocated for in " "configuration %d\n", cfgno); } else { - config->intf_assoc[iad_num] = - (struct usb_interface_assoc_descriptor - *)header; + config->intf_assoc[iad_num] = d; iad_num++; } @@ -852,7 +860,7 @@ int usb_get_configuration(struct usb_device *dev) } if (dev->quirks & USB_QUIRK_DELAY_INIT) - msleep(100); + msleep(200); result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno, bigbuffer, length); |