diff options
| -rw-r--r-- | drivers/usb/gadget/function/f_mtp.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/usb/gadget/function/f_mtp.c b/drivers/usb/gadget/function/f_mtp.c index b25cb3594d01..78b110dd2977 100644 --- a/drivers/usb/gadget/function/f_mtp.c +++ b/drivers/usb/gadget/function/f_mtp.c @@ -729,6 +729,11 @@ static void send_file_work(struct work_struct *data) offset = dev->xfer_file_offset; count = dev->xfer_file_length; + if (count < 0) { + dev->xfer_result = -EINVAL; + return; + } + DBG(cdev, "send_file_work(%lld %lld)\n", offset, count); if (dev->xfer_send_header) { @@ -835,6 +840,11 @@ static void receive_file_work(struct work_struct *data) offset = dev->xfer_file_offset; count = dev->xfer_file_length; + if (count < 0) { + dev->xfer_result = -EINVAL; + return; + } + DBG(cdev, "receive_file_work(%lld)\n", count); while (count > 0 || write_req) { |