tree 3f6d4343681051e5f68f17ab0068ccab0e834c96
parent 62d1760180c84cba68cc83696fa0bde0593007bd
author Liu Gang-B34182 <B34182@freescale.com> 1314313165 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1314323466 -0700

arch/powerpc/sysdev/fsl_rio.c: correct IECSR register clear value

This bug causes the IECSR register clear failure.  In this case, the RETE
(retry error threshold exceeded) interrupt will be generated and cannot be
cleared.  So the related ISR may be called persistently.

The RETE bit in IECSR is cleared by writing a 1 to it.

Signed-off-by: Liu Gang <Gang.Liu@freescale.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>