diff options
Diffstat (limited to 'drivers/usb/core/config.c')
| -rw-r--r-- | drivers/usb/core/config.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c index 151a74a54386..1ac1095bfeac 100644 --- a/drivers/usb/core/config.c +++ b/drivers/usb/core/config.c @@ -348,6 +348,11 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum, /* Validate the wMaxPacketSize field */ maxp = usb_endpoint_maxp(&endpoint->desc); + if (maxp == 0) { + dev_warn(ddev, "config %d interface %d altsetting %d endpoint 0x%X has wMaxPacketSize 0, skipping\n", + cfgno, inum, asnum, d->bEndpointAddress); + goto skip_to_next_endpoint_or_interface_descriptor; + } /* Find the highest legal maxpacket size for this endpoint */ i = 0; /* additional transactions per microframe */ |