From c5d3e8fa1a1bf28ac9997421fd18fcbecef941bd Mon Sep 17 00:00:00 2001 From: Ulf Hansson Date: Sun, 8 Sep 2019 12:12:32 +0200 Subject: mmc: core: WARN if SDIO IRQs are enabled for non-powered card in suspend To make sure SDIO func drivers behaves correctly during system suspend/resume, let add a WARN_ON in case the condition is a non-powered SDIO card and there are some SDIO IRQs still being claimed. Tested-by: Matthias Kaehlcke Reviewed-by: Matthias Kaehlcke Signed-off-by: Ulf Hansson --- drivers/mmc/core/sdio.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/mmc/core/sdio.c') diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c index 8dd8fc32ecca..c557f1519b77 100644 --- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -951,6 +951,8 @@ static int mmc_sdio_pre_suspend(struct mmc_host *host) */ static int mmc_sdio_suspend(struct mmc_host *host) { + WARN_ON(host->sdio_irqs && !mmc_card_keep_power(host)); + /* Prevent processing of SDIO IRQs in suspended state. */ mmc_card_set_suspended(host->card); cancel_delayed_work_sync(&host->sdio_irq_work); -- cgit v1.2.3-59-g8ed1b