serial: sirf: fix endless loop bug in uart receive tasklet

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In special condition, when cpu schedule into rx_tmo_process_tl or
rx_dma_complete_tl and all the receive dma tasks have done, it will
go into endless loop because no dma task cookie status be changed.

Signed-off-by: Qipan Li <Qipan.Li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Qipan Li 2015-05-14 06:45:23 +00:00 • committed by Greg Kroah-Hartman

parent eab192ae56

commit 36c0991089

1 changed files with 9 additions and 0 deletions

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drivers/tty/serial/sirfsoc_uart.c

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