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| author | Ming Lei <tom.leiming@gmail.com> | 2010-09-20 10:32:06 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-09-24 11:05:01 -0700 |
| commit | 66af83ddf7b5a4ea94e79cbeadaa0aeed4def5f7 (patch) | |
| tree | 06cc6046c4db50bc9dd1b165e9c02095bc12d57f /drivers/usb/musb/cppi_dma.c | |
| parent | bb27bc2c1133372b54d00f3077ea4acbbf459045 (diff) | |
| download | op-kernel-dev-66af83ddf7b5a4ea94e79cbeadaa0aeed4def5f7.zip op-kernel-dev-66af83ddf7b5a4ea94e79cbeadaa0aeed4def5f7.tar.gz | |
usb: musb: gadget: fix dma length in txstate
DMA length should not go beyond the availabe space
of request buffer, so fix it.
Also set max_len of cppi dma channel as max size of
int type, so make musb dma handling happier.
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Anand Gadiyar <gadiyar@ti.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/musb/cppi_dma.c')
| -rw-r--r-- | drivers/usb/musb/cppi_dma.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/musb/cppi_dma.c b/drivers/usb/musb/cppi_dma.c index 59dc3d3..5ab5bb8 100644 --- a/drivers/usb/musb/cppi_dma.c +++ b/drivers/usb/musb/cppi_dma.c @@ -322,6 +322,7 @@ cppi_channel_allocate(struct dma_controller *c, index, transmit ? 'T' : 'R', cppi_ch); cppi_ch->hw_ep = ep; cppi_ch->channel.status = MUSB_DMA_STATUS_FREE; + cppi_ch->channel.max_len = 0x7fffffff; DBG(4, "Allocate CPPI%d %cX\n", index, transmit ? 'T' : 'R'); return &cppi_ch->channel; |
