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authorSteven Miao <realmz6@gmail.com>2012-11-07 06:27:56 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-11-16 01:59:58 +0100
commit9642dbe73c8a3b55a812253fcb9add9eeed4ca81 (patch)
treebdd51cf2a84b33b7c672d738b5a1eaf12bab342d /drivers/tty/serial/mfd.c
parentserial: cast before shifting on port io (diff)
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serial: bfin-uart: avoid dead lock in rx irq handler in smp kernel
Disabing dma irq and lock bottom half in smp kernel doesn't ensure exclusive uart access. Call spin_lock_irqsave() instead. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/mfd.c')
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