shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-05 02:21:52 +09:00
Code Issues Packages Projects Releases Wiki Activity

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

Browse Source 
commit 04471eb8c3 upstream.

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: 069a3fd (usb: musb: Remove ifdefs for musb_host_rx in musb_host.c
part1)

Reported-by: Matwey V. Kornilov <matwey@sai.msu.ru>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bin Liu
2016-05-31 10:05:25 -05:00
committed by Greg Kroah-Hartman
parent a8f7a6d2ce
commit faa1dbbed2
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/usb/musb/musb_host.c
View File

@@ -1556,7 +1556,7 @@ static int musb_rx_dma_iso_cppi41(struct dma_controller *dma,
struct urb *urb,
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;
dma_addr_t *buf;
u32 length, res;