3.16.40-rc1 review patch. If anyone has any objections, please let me know.
------------------ From: Ulf Hansson <[email protected]> commit 4f48aa7a11bfed9502a7c85a5b68cd40ea827f73 upstream. Accesses of the rtsx sdmmc's parent device, which is the rtsx usb device, must be done when it's runtime resumed. Currently this isn't case when changing the led, so let's fix this by adding a pm_runtime_get_sync() and a pm_runtime_put() around those operations. Reported-by: Ritesh Raj Sarraf <[email protected]> Tested-by: Ritesh Raj Sarraf <[email protected]> Cc: Alan Stern <[email protected]> Signed-off-by: Ulf Hansson <[email protected]> Signed-off-by: Ben Hutchings <[email protected]> --- drivers/mmc/host/rtsx_usb_sdmmc.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/mmc/host/rtsx_usb_sdmmc.c +++ b/drivers/mmc/host/rtsx_usb_sdmmc.c @@ -1309,6 +1309,7 @@ static void rtsx_usb_update_led(struct w container_of(work, struct rtsx_usb_sdmmc, led_work); struct rtsx_ucr *ucr = host->ucr; + pm_runtime_get_sync(sdmmc_dev(host)); mutex_lock(&ucr->dev_mutex); if (host->led.brightness == LED_OFF) @@ -1317,6 +1318,7 @@ static void rtsx_usb_update_led(struct w rtsx_usb_turn_on_led(ucr); mutex_unlock(&ucr->dev_mutex); + pm_runtime_put(sdmmc_dev(host)); } #endif
