The patch titled
serial: bfin_5xx: need to disable DMA TX interrupt too
has been removed from the -mm tree. Its filename was
serial-bfin_5xx-need-to-disable-dma-tx-interrupt-too.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: serial: bfin_5xx: need to disable DMA TX interrupt too
From: Graf Yang <graf.yang@xxxxxxxxxx>
If we don't disable the DMA TX channel, an inopportune timeout will
trigger the interrupt handler and may cause a dead lock with the
spin_lock.
Signed-off-by: Graf Yang <graf.yang@xxxxxxxxxx>
Signed-off-by: Mike Frysinger <vapier@xxxxxxxxxx>
Cc: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/serial/bfin_5xx.c | 2 ++
1 file changed, 2 insertions(+)
diff -puN drivers/serial/bfin_5xx.c~serial-bfin_5xx-need-to-disable-dma-tx-interrupt-too drivers/serial/bfin_5xx.c
--- a/drivers/serial/bfin_5xx.c~serial-bfin_5xx-need-to-disable-dma-tx-interrupt-too
+++ a/drivers/serial/bfin_5xx.c
@@ -488,6 +488,7 @@ void bfin_serial_rx_dma_timeout(struct b
{
int x_pos, pos;
+ dma_disable_irq(uart->tx_dma_channel);
dma_disable_irq(uart->rx_dma_channel);
spin_lock_bh(&uart->port.lock);
@@ -521,6 +522,7 @@ void bfin_serial_rx_dma_timeout(struct b
}
spin_unlock_bh(&uart->port.lock);
+ dma_enable_irq(uart->tx_dma_channel);
dma_enable_irq(uart->rx_dma_channel);
mod_timer(&(uart->rx_dma_timer), jiffies + DMA_RX_FLUSH_JIFFIES);
_
Patches currently in -mm which might be from graf.yang@xxxxxxxxxx are
linux-next.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
