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authorStefan Nilsson XK <stefan.xk.nilsson@stericsson.com>2011-03-01 14:41:04 +0100
committerChris Ball <cjb@laptop.org>2011-03-17 15:35:09 -0400
commit0aab3995485b8a994bf29a995a008c9ea4a28054 (patch)
treeca4d3aba01b94ce9b8cb771536665c1b31f1fcdc /drivers/mmc
parentba6a902d9d89b976bf64a435ec97a490cd160dec (diff)
mmc: sdio: remember new card RCA when redetecting card
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> Cc: <stable@kernel.org> Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/core/sdio.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index c9fbb777440d..db0f0b44d684 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -395,6 +395,14 @@ 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);
}