USB: don't allocate dma pools for PIO HCDs
hcd_buffer_alloc() and hcd_buffer_free() have a similar dma_mask
check and revert to kmalloc()/kfree(), but hcd_buffer_create()
doesn't check dma_mask and allocates unused dma pools.
Signed-off-by: Chris Humbert <[EMAIL PROTECTED]>
diff --git a/drivers/usb/core/buffer.c b/drivers/usb/core/buffer.c
--- a/drivers/usb/core/buffer.c
+++ b/drivers/usb/core/buffer.c
@@ -55,6 +55,9 @@ int hcd_buffer_create (struct usb_hcd *h
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;
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