]> git.openfabrics.org - ~shefty/rdma-dev.git/commit
mmc: sh-mmcif: avoid oops on spurious interrupts (second try)
authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Wed, 22 Aug 2012 06:49:47 +0000 (06:49 +0000)
committerChris Ball <cjb@laptop.org>
Thu, 6 Dec 2012 18:54:35 +0000 (13:54 -0500)
commit91ab252ac5a5c3461dd6910797611e9172626aed
tree8e1dfa1c86e2221997e4918203615782404a663c
parent6984f3c31bb57cb7491dbec1be44b74bd00f4648
mmc: sh-mmcif: avoid oops on spurious interrupts (second try)

On some systems, e.g., kzm9g, MMCIF interfaces can produce spurious
interrupts without any active request. To prevent the Oops, that results
in such cases, don't dereference the mmc request pointer until we make
sure, that we are indeed processing such a request.

Reported-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Tested-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
Cc: stable@vger.kernel.org
Signed-off-by: Chris Ball <cjb@laptop.org>
drivers/mmc/host/sh_mmcif.c