usb: gadget: udc: remove unnecessary variable and update function prototype

Remove unnecessary variable and update function prototype.

Acked-by: Michal Nazarewicz <mina86@mina86.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

diff --git a/drivers/usb/gadget/udc/amd5536udc.c b/drivers/usb/gadget/udc/amd5536udc.c
index 821d088d11679ee6ee4389358b4751f004bcee01..67dd209402638fc223ae5b85c99ba723a3d3bf64 100644 (file)
--- a/drivers/usb/gadget/udc/amd5536udc.c
+++ b/drivers/usb/gadget/udc/amd5536udc.c
@@ -608,9 +608,8 @@ udc_alloc_request(struct usb_ep *usbep, gfp_t gfp)
 }
 
 /* frees pci pool descriptors of a DMA chain */
-static int udc_free_dma_chain(struct udc *dev, struct udc_request *req)
+static void udc_free_dma_chain(struct udc *dev, struct udc_request *req)
 {
-       int ret_val = 0;
        struct udc_data_dma *td = req->td_data;
        unsigned int i;
 
@@ -626,8 +625,6 @@ static int udc_free_dma_chain(struct udc *dev, struct udc_request *req)
                pci_pool_free(dev->data_requests, td, addr);
                addr = addr_next;
        }
-
-       return ret_val;
 }
 
 /* Frees request packet, called by gadget driver */