This is a note to let you know that I've just added the patch titled
usb: musb: host: correct cppi dma channel for isoch transfer
to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-linus branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.
If you have any questions about this process, please let me know.
>From 04471eb8c3158c0ad9df4b24da845a63b2e8f23a Mon Sep 17 00:00:00 2001
From: Bin Liu <b-liu@xxxxxx>
Date: Tue, 31 May 2016 10:05:25 -0500
Subject: 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: 069a3fd (usb: musb: Remove ifdefs for musb_host_rx in musb_host.c
part1)
Cc: <stable@xxxxxxxxxxxxxxx> # v4.2+
Reported-by: Matwey V. Kornilov <matwey@xxxxxxxxxx>
Acked-by: Tony Lindgren <tony@xxxxxxxxxxx>
Signed-off-by: Bin Liu <b-liu@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/musb/musb_host.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index f02361dbfd52..f0931c418f83 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -1549,7 +1549,7 @@ 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;
--
2.8.3
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