From: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> The fsl udc driver allocates a buffer for small requests. The driver then calls dma_inv_range later on it. This buffer happens to be not cacheline aligned which means that a dma_inv_range can corrupt other memory around the buffer. Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> [mkl: use dma_alloc] Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx> --- drivers/usb/gadget/fsl_udc.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/usb/gadget/fsl_udc.c b/drivers/usb/gadget/fsl_udc.c index 5b64ec2..2765b41 100644 --- a/drivers/usb/gadget/fsl_udc.c +++ b/drivers/usb/gadget/fsl_udc.c @@ -8,7 +8,7 @@ #include <io.h> #include <poller.h> #include <asm/byteorder.h> -#include <asm/mmu.h> +#include <asm/dma.h> /* ### define USB registers here */ @@ -2109,7 +2109,8 @@ static int struct_udc_setup(struct fsl_udc *udc, udc->status_req = container_of(fsl_alloc_request(NULL), struct fsl_req, req); /* allocate a small amount of memory to get valid address */ - udc->status_req->req.buf = xmalloc(8); + udc->status_req->req.buf = dma_alloc(8); + udc->status_req->req.length = 8; udc->resume_state = USB_STATE_NOTATTACHED; udc->usb_state = USB_STATE_POWERED; udc->ep0_dir = 0; -- 1.7.4.1 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
