mmc: sdhci: Do not allow tuning procedure to be interrupted
authorChristopher Freeman <cfreeman@nvidia.com>
Wed, 17 Aug 2016 17:34:27 +0000 (13:34 -0400)
committerUlf Hansson <ulf.hansson@linaro.org>
Mon, 26 Sep 2016 19:31:11 +0000 (21:31 +0200)
commit622b5f35dab374138cfc8ab76d0fcf6b342eb744
tree58ae4793a906834287876e580286bceec5395e4e
parent2fb0b02b79d1c5ca88e223750a2eb9b0a3679bb0
mmc: sdhci: Do not allow tuning procedure to be interrupted

wait_event_interruptible_timeout() will return early if the blocked
process receives a signal, causing the driver to abort the tuning
procedure and possibly leaving the controller in a bad state.  Since the
tuning command is expected to complete quickly (<50ms) and we've set a
timeout, use wait_event_timeout() instead.

Signed-off-by: Christopher Freeman <cfreeman@nvidia.com>
Tested-by: Robert Foss <robert.foss@collabora.com>
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Benson Leung <bleung@chromium.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
drivers/mmc/host/sdhci.c