usb: dwc3: gadget: fix DMA offset calculation

Fix offset calculation in dwc3_trb_dma_offset() Signed-off-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
git-mirror · Oct 4, 2011 · c439ef8 · c439ef8
1 parent 5275455
commit c439ef8
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
@@ -189,7 +189,7 @@ int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep,
 static dma_addr_t dwc3_trb_dma_offset(struct dwc3_ep *dep,
 		struct dwc3_trb_hw *trb)
 {
-	u32		offset = trb - dep->trb_pool;
+	u32		offset = (char *) trb - (char *) dep->trb_pool;
 
 	return dep->trb_pool_dma + offset;
 }