| Message ID | 1393478081-14226-3-git-send-email-george.cherian@ti.com (mailing list archive) |
|---|---|
| State | Accepted |
| Delegated to: | Vinod Koul |
| Headers | show |
diff --git a/drivers/usb/musb/musb_cppi41.c b/drivers/usb/musb/musb_cppi41.c index f3ec7d2..e201b1e 100644 --- a/drivers/usb/musb/musb_cppi41.c +++ b/drivers/usb/musb/musb_cppi41.c @@ -132,7 +132,8 @@ static void cppi41_trans_done(struct cppi41_dma_channel *cppi41_channel) struct musb_hw_ep *hw_ep = cppi41_channel->hw_ep; struct musb *musb = hw_ep->musb; - if (!cppi41_channel->prog_len) { + if (!cppi41_channel->prog_len || + (cppi41_channel->channel.status == MUSB_DMA_STATUS_FREE)) { /* done, complete */ cppi41_channel->channel.actual_len =
Reprogramming the DMA after tear down is initiated leads to warning. This is mainly seen with ISOCH since we do a delayed completion for ISOCH transfers. In ISOCH transfers dma_completion should not reprogram if the channel tear down is initiated. Signed-off-by: George Cherian <george.cherian@ti.com> --- drivers/usb/musb/musb_cppi41.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)