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mmc: sdio: remember new card RCA when redetecting card

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commit 0aab399548 upstream.

During redetection of a SDIO card, a request for a new card RCA
was submitted to the card, but was then overwritten by the old RCA.
This caused the card to be deselected instead of selected when using
the incorrect RCA.  This bug's been present since the "oldcard"
handling was introduced in 2.6.32.

Signed-off-by: Stefan Nilsson XK <stefan.xk.nilsson@stericsson.com>
Reviewed-by: Ulf Hansson <ulf.hansson@stericsson.com>
Reviewed-by: Pawel Wieczorkiewicz <pawel.wieczorkiewicz@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Stefan Nilsson XK 2011-03-01 14:41:04 +01:00 committed by Greg Kroah-Hartman
parent 15e5405e7d
commit 468b2ed1cf
1 changed files with 8 additions and 0 deletions
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8
drivers/mmc/core/sdio.c
View File

@ -267,6 +267,14 @@ static int mmc_sdio_init_card(struct mmc_host *host, u32 ocr,
if (err)
goto remove;
/*
* Update oldcard with the new RCA received from the SDIO
* device -- we're doing this so that it's updated in the
* "card" struct when oldcard overwrites that later.
*/
if (oldcard)
oldcard->rca = card->rca;
mmc_set_bus_mode(host, MMC_BUSMODE_PUSHPULL);
}