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author | Steven Miao <realmz6@gmail.com> | 2012-11-07 06:27:56 +0100 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-11-16 01:59:58 +0100 |
commit | 9642dbe73c8a3b55a812253fcb9add9eeed4ca81 (patch) | |
tree | bdd51cf2a84b33b7c672d738b5a1eaf12bab342d /drivers/tty/serial/mfd.c | |
parent | serial: cast before shifting on port io (diff) | |
download | linux-9642dbe73c8a3b55a812253fcb9add9eeed4ca81.tar.xz linux-9642dbe73c8a3b55a812253fcb9add9eeed4ca81.zip |
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')
0 files changed, 0 insertions, 0 deletions