k2_fw_usb_api: add warning on oversized buffer.

[open-ath9k-htc-firmware.git] / target_firmware / magpie_fw_dev / target / hif / k2_fw_usb_api.c

diff --git a/target_firmware/magpie_fw_dev/target/hif/k2_fw_usb_api.c b/target_firmware/magpie_fw_dev/target/hif/k2_fw_usb_api.c
index b549108c145d496be4808beff89b7031fd5a9012..b8adbf43600c018df60ac93c4b48c2a8939a8553 100755 (executable)
--- a/target_firmware/magpie_fw_dev/target/hif/k2_fw_usb_api.c
+++ b/target_firmware/magpie_fw_dev/target/hif/k2_fw_usb_api.c
@@ -418,6 +418,10 @@ void vUsb_Reg_Out_patch(void)
 
     // get the size of this transcation
     usbfifolen = USB_BYTE_REG_READ(ZM_EP4_BYTE_COUNT_LOW_OFFSET);
+    if (usbfifolen > 0x40) {
+        A_PRINTF("EP4 FIFO Bug? Buffer is too big: %x\n", usbfifolen);
+        goto ERR;
+    }
 
     // check is command is new
     if( cmd_is_new ){