mmc: sd: Set the card removed if card detect fails

Currently, the card state is not being set as removed, even
when the card is actually removed. We still wait for the
next request to fail and then check the error and set the
card to be removed.

With the new runtime-pm in place, the card device would be
removed on physical removal of card and the corresponding
parent would be suspended as well. Hence, when the queue is
flushed during clean-up, mmc_rpm_hold would be invoked,
which would fail, since the runtime-pm was disabled when the
card device was removed. Thus, it won't resume the card/host/
platform device. The request would continue and since the
controller is in suspended state nasty things would happen.

This patch sets the card as removed during mmc_sd_detect
itself, so that when a clean-up of queue happens during
card removal, it is known that the card has been removed
and the request is errored out there itself.

Change-Id: Id5022f8d7db43750edf137d4293796615b56ae36
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>

drivers/mmc/core/sd.c

@@ -1149,6 +1149,7 @@ static void mmc_sd_detect(struct mmc_host *host)
 	if (!retries) {
 		printk(KERN_ERR "%s(%s): Unable to re-detect card (%d)\n",
 		       __func__, mmc_hostname(host), err);
+		err = _mmc_detect_card_removed(host);
 	}
 #else
 	err = _mmc_detect_card_removed(host);