tree 8e5e8779f9c3228b5a04044bc077b78eac456fc2
parent 524bfca2b42a7c9dc43af13e1592b21dd1ce3fcc
author Sujit Reddy Thumma <sthumma@codeaurora.org> 1322017998 +0530
committer Chris Ball <cjb@laptop.org> 1323551919 -0500

mmc: core: Fix deadlock when the CONFIG_MMC_UNSAFE_RESUME is not defined

mmc_suspend_host() tries to claim host during suspend
and release it only when the bus suspend operation is
compeleted. If CONFIG_MMC_UNSAFE_RESUME is defined and
the host is flagged as removable, mmc_suspend_host()
tries to remove the card. In this process, the file system
sync can get blocked trying to acquire host which is already
claimed by mmc_suspend_host() causing deadlock.

Fix this deadlock by releasing host before ->remove() is called.

Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>
Acked-by: Ulf Hansson <ulf.hansson@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>