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| author | Johannes Berg <johannes.berg@intel.com> | 2015-06-10 13:44:58 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2015-06-10 13:45:09 +0300 |
| commit | 206c59d1d7d42bcafc1d7f1e476e87e4427e2345 (patch) | |
| tree | a2f99470bd0fe43f5cf57812fca969bb3ca3c451 /drivers/usb/class/cdc-acm.c | |
| parent | 5ec596c41bba6f4e3eeef5dc089afc8eaa702a7e (diff) | |
| parent | c3eee1fb1d308564ada5f7ea57bc51efc6130b37 (diff) | |
| download | linux-206c59d1d7d42bcafc1d7f1e476e87e4427e2345.tar.xz | |
Merge remote-tracking branch 'net-next/master' into mac80211-next
Merge back net-next to get wireless driver changes (from Kalle)
to be able to create the API change across all trees properly.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers/usb/class/cdc-acm.c')
| -rw-r--r-- | drivers/usb/class/cdc-acm.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 3e15add665e2..5c8f58114677 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1142,11 +1142,16 @@ static int acm_probe(struct usb_interface *intf, } while (buflen > 0) { + elength = buffer[0]; + if (!elength) { + dev_err(&intf->dev, "skipping garbage byte\n"); + elength = 1; + goto next_desc; + } if (buffer[1] != USB_DT_CS_INTERFACE) { dev_err(&intf->dev, "skipping garbage\n"); goto next_desc; } - elength = buffer[0]; switch (buffer[2]) { case USB_CDC_UNION_TYPE: /* we've found it */ |