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Date: Wed, 26 Oct 2016 14:23:27 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Ritesh Raj Sarraf <rrs@...earchut.com>, Alan Stern <stern@...land.harvard.edu>, Ulf Hansson <ulf.hansson@...aro.org> Subject: [PATCH 4.4 104/112] mmc: rtsx_usb_sdmmc: Avoid keeping the device runtime resumed when unused 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ulf Hansson <ulf.hansson@...aro.org> 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@...earchut.com> Cc: Alan Stern <stern@...land.harvard.edu> Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/mmc/host/rtsx_usb_sdmmc.c | 5 ----- 1 file changed, 5 deletions(-) --- 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_hos 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);
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