rapidio/rionet: fix deadlock on SMP
authorAurelien Jacquiot <a-jacquiot@ti.com>
Tue, 22 Mar 2016 21:25:42 +0000 (14:25 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 22 Mar 2016 22:36:02 +0000 (15:36 -0700)
commit36915976eca58f2eefa040ba8f9939672564df61
tree8d89826c7a16c53870d898c5a7f6a7c13f5a790b
parent95f27356e4a8982257ecae6bc44c650772d77659
rapidio/rionet: fix deadlock on SMP

Fix deadlocking during concurrent receive and transmit operations on SMP
platforms caused by the use of incorrect lock: on transmit 'tx_lock'
spinlock should be used instead of 'lock' which is used for receive
operation.

This fix is applicable to kernel versions starting from v2.15.

Signed-off-by: Aurelien Jacquiot <a-jacquiot@ti.com>
Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Andre van Herk <andre.van.herk@prodrive-technologies.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/net/rionet.c