mmc: mxs: Initialize the spinlock prior to using it
authorFabio Estevam <fabio.estevam@nxp.com>
Sat, 5 Nov 2016 19:45:07 +0000 (17:45 -0200)
committerUlf Hansson <ulf.hansson@linaro.org>
Mon, 7 Nov 2016 12:30:08 +0000 (13:30 +0100)
commitf91346e8b5f46aaf12f1df26e87140584ffd1b3f
tree2db740d88d7d78f04a7739f8e86411f412f376bc
parentfe1b5700c70faac6e027982d59667bc6020de5a8
mmc: mxs: Initialize the spinlock prior to using it

An interrupt may occur right after devm_request_irq() is called and
prior to the spinlock initialization, leading to a kernel oops,
as the interrupt handler uses the spinlock.

In order to prevent this problem, move the spinlock initialization
prior to requesting the interrupts.

Fixes: e4243f13d10e (mmc: mxs-mmc: add mmc host driver for i.MX23/28)
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
drivers/mmc/host/mxs-mmc.c