Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | Ulf Hansson <> | Subject | [PATCH 07/11] mmc: core: WARN if SDIO IRQs are enabled for non-powered card in suspend | Date | Tue, 3 Sep 2019 16:22:03 +0200 |
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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.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> --- drivers/mmc/core/sdio.c | 2 ++ 1 file changed, 2 insertions(+)
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); -- 2.17.1
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