#include <errno.h>
#include <usb.h>
#include <malloc.h>
+#include <memalign.h>
#include <phys2bus.h>
#include <usbroothubdes.h>
#include <asm/io.h>
(*pid << DWC2_HCTSIZ_PID_OFFSET),
&hc_regs->hctsiz);
- if (!in) {
- memcpy(priv->aligned_buffer, (char *)buffer + done, len);
+ if (!in && xfer_len) {
+ memcpy(priv->aligned_buffer, (char *)buffer + done,
+ xfer_len);
flush_dcache_range((unsigned long)priv->aligned_buffer,
(unsigned long)((void *)priv->aligned_buffer +
- roundup(len, ARCH_DMA_MINALIGN)));
+ roundup(xfer_len, ARCH_DMA_MINALIGN)));
}
writel(phys_to_bus((unsigned long)priv->aligned_buffer),