X-Git-Url: https://repo.jachan.dev/linux.git/blobdiff_plain/972421264637b5df168125e157d881c1899519dd..db1a19b38f3a85f475b4ad716c71be133d8ca48e:/drivers/usb/core/buffer.c

diff --git a/drivers/usb/core/buffer.c b/drivers/usb/core/buffer.c
index 419c9943a7cb..840442a25b61 100644
--- a/drivers/usb/core/buffer.c
+++ b/drivers/usb/core/buffer.c
@@ -5,7 +5,6 @@
  * and should work with all USB controllers, regardles of bus type.
  */
 
-#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
@@ -55,6 +54,9 @@ int hcd_buffer_create (struct usb_hcd *hcd)
 	char		name [16];
 	int 		i, size;
 
+	if (!hcd->self.controller->dma_mask)
+		return 0;
+
 	for (i = 0; i < HCD_BUFFER_POOLS; i++) { 
 		if (!(size = pool_max [i]))
 			continue;
@@ -102,7 +104,7 @@ void *hcd_buffer_alloc (
 	dma_addr_t		*dma
 )
 {
-	struct usb_hcd		*hcd = bus->hcpriv;
+	struct usb_hcd		*hcd = bus_to_hcd(bus);
 	int 			i;
 
 	/* some USB hosts just use PIO */
@@ -125,7 +127,7 @@ void hcd_buffer_free (
 	dma_addr_t		dma
 )
 {
-	struct usb_hcd		*hcd = bus->hcpriv;
+	struct usb_hcd		*hcd = bus_to_hcd(bus);
 	int 			i;
 
 	if (!addr)