commit | 9642dbe73c8a3b55a812253fcb9add9eeed4ca81 | [log] [tgz] |
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author | Steven Miao <realmz6@gmail.com> | Wed Nov 07 13:27:56 2012 +0800 |
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | Thu Nov 15 16:59:58 2012 -0800 |
tree | bdd51cf2a84b33b7c672d738b5a1eaf12bab342d | |
parent | 7a876b39b5bc94f67e8a3a7adfd270b8c21fc762 [diff] |
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>