Commit 04471eb8 authored by Bin Liu's avatar Bin Liu Committed by Greg Kroah-Hartman

usb: musb: host: correct cppi dma channel for isoch transfer

Incorrect cppi dma channel is referenced in musb_rx_dma_iso_cppi41(),
which causes kernel NULL pointer reference oops later when calling
cppi41_dma_channel_program().

Fixes: 069a3fd1 (usb: musb: Remove ifdefs for musb_host_rx in musb_host.c
part1)

Cc: <stable@vger.kernel.org> # v4.2+
Reported-by: default avatarMatwey V. Kornilov <matwey@sai.msu.ru>
Acked-by: default avatarTony Lindgren <tony@atomide.com>
Signed-off-by: default avatarBin Liu <b-liu@ti.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 84ac5d11
...@@ -1549,7 +1549,7 @@ static int musb_rx_dma_iso_cppi41(struct dma_controller *dma, ...@@ -1549,7 +1549,7 @@ static int musb_rx_dma_iso_cppi41(struct dma_controller *dma,
struct urb *urb, struct urb *urb,
size_t len) size_t len)
{ {
struct dma_channel *channel = hw_ep->tx_channel; struct dma_channel *channel = hw_ep->rx_channel;
void __iomem *epio = hw_ep->regs; void __iomem *epio = hw_ep->regs;
dma_addr_t *buf; dma_addr_t *buf;
u32 length, res; u32 length, res;
......
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