atmel_serial: fix spinlock lockup in RS485 code
commit630fe244a944ebb950e8b2076177547266d255cf
authorClaudio Scordino <claudio@evidence.eu.com>
Fri, 16 Dec 2011 14:08:49 +0000 (16 15:08 +0100)
committerGreg Kroah-Hartman <gregkh@suse.de>
Thu, 12 Jan 2012 19:35:07 +0000 (12 11:35 -0800)
treeaae7e78232a9e9f024e0a48add044751a2048ac1
parent90a043b02598d19b6dccc677bbf9bb8e8ec94ab7
atmel_serial: fix spinlock lockup in RS485 code

commit dbf1115d3f8c7052788aa4e6e46abd27f3b3eeba upstream.

Patch to fix a spinlock lockup in the driver that sometimes happens when the
tasklet starts.

Signed-off-by: Claudio Scordino <claudio@evidence.eu.com>
Signed-off-by: Dave Bender <codehero@gmail.com>
Tested-by: Dave Bender <codehero@gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/tty/serial/atmel_serial.c