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serial:ifx6x60:Delete SPI timer when shut down port 

When shut down SPI port, it's possible that MRDY has been asserted and a SPI
timer was activated waiting for SRDY assert, in the case, it needs to delete
this timer.

Signed-off-by: Chen Jun <jun.d.chen@intel.com>
Signed-off-by: channing <chao.bi@intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
chao bi 2012-12-12 11:40:56 +08:00 committed by Greg Kroah-Hartman
parent b7b9041b20
commit 014b9b4ce8
1 changed files with 1 additions and 0 deletions
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drivers/tty/serial/ifx6x60.c
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@ -637,6 +637,7 @@ static void ifx_port_shutdown(struct tty_port *port)
clear_bit(IFX_SPI_STATE_IO_AVAILABLE, &ifx_dev->flags);
mrdy_set_low(ifx_dev);
del_timer(&ifx_dev->spi_timer);
clear_bit(IFX_SPI_STATE_TIMER_PENDING, &ifx_dev->flags);
tasklet_kill(&ifx_dev->io_work_tasklet);
}