diff options
Diffstat (limited to 'drivers/usb/core/message.c')
| -rw-r--r-- | drivers/usb/core/message.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index 74edaea5665..2f17468b5c1 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -11,6 +11,7 @@ #include <linux/timer.h> #include <linux/ctype.h> #include <linux/device.h> +#include <linux/usb/quirks.h> #include <asm/byteorder.h> #include <asm/scatterlist.h> @@ -685,7 +686,10 @@ static int usb_string_sub(struct usb_device *dev, unsigned int langid, /* Try to read the string descriptor by asking for the maximum * possible number of bytes */ - rc = usb_get_string(dev, langid, index, buf, 255); + if (dev->quirks & USB_QUIRK_STRING_FETCH_255) + rc = -EIO; + else + rc = usb_get_string(dev, langid, index, buf, 255); /* If that failed try to read the descriptor length, then * ask for just that many bytes */ |