mmc: rtsx_usb_sdmmc: Avoid keeping the device runtime resumed when unused

commit 31cf742f515c275d22843c4c756e048d2b6d716c upstream.

The rtsx_usb_sdmmc driver may bail out in its ->set_ios() callback when no
SD card is inserted. This is wrong, as it could cause the device to remain
runtime resumed when it's unused. Fix this behaviour.

Tested-by: Ritesh Raj Sarraf <rrs@researchut.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/mmc/host/rtsx_usb_sdmmc.c b/drivers/mmc/host/rtsx_usb_sdmmc.c
index 6c71fc9f76c7ecab19a5a7ac24a53ab38a6125fd..fe9f82b19fc06e71d1d522961dae7247eb9d6b9e 100644 (file)
--- a/drivers/mmc/host/rtsx_usb_sdmmc.c
+++ b/drivers/mmc/host/rtsx_usb_sdmmc.c
@@ -1138,11 +1138,6 @@ static void sdmmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
        dev_dbg(sdmmc_dev(host), "%s\n", __func__);
        mutex_lock(&ucr->dev_mutex);
 
-       if (rtsx_usb_card_exclusive_check(ucr, RTSX_USB_SD_CARD)) {
-               mutex_unlock(&ucr->dev_mutex);
-               return;
-       }
-
        sd_set_power_mode(host, ios->power_mode);
        sd_set_bus_width(host, ios->bus_width);
        sd_set_timing(host, ios->timing, &host->ddr_mode);