During card detection process, mmc core may sends commands to detect if card is still exist in mmc_rescan for removable card which may trigger mmc retuning process after a bit time of runtime pm suspend. Obviously this retuning process is meaningless for card remove case, so we disable mmc_retune in mmc_detect_change() for it. For card insert case, the mmc_retune will be enabled normally in its card initialization process later in mmc_execute_tuning(). So disable it at first has no side effection. CC: stable <stable@xxxxxxxxxxxxxxx> Signed-off-by: Dong Aisheng <aisheng.dong@xxxxxxx> --- drivers/mmc/core/core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 52bfaf0..76d0802 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -1888,6 +1888,7 @@ static void _mmc_detect_change(struct mmc_host *host, unsigned long delay, pm_wakeup_event(mmc_dev(host), 5000); host->detect_change = 1; + mmc_retune_disable(host); mmc_schedule_delayed_work(&host->detect, delay); } -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
