linux-kernel - [PATCH 4.9 18/38] mmc: core: Do not leave the block driver in a suspended state

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Message-Id: <20171204160008.154255718@linuxfoundation.org>
Date:   Mon,  4 Dec 2017 16:59:58 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Adrian Hunter <adrian.hunter@...el.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Ulf Hansson <ulf.hansson@...aro.org>
Subject: [PATCH 4.9 18/38] mmc: core: Do not leave the block driver in a suspended state

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Adrian Hunter <adrian.hunter@...el.com>

commit ebe7dd45cf49e3b49cacbaace17f9f878f21fbea upstream.

The block driver must be resumed if the mmc bus fails to suspend the card.

Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/mmc/core/bus.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/mmc/core/bus.c
+++ b/drivers/mmc/core/bus.c
@@ -155,6 +155,9 @@ static int mmc_bus_suspend(struct device
 		return ret;
 
 	ret = host->bus_ops->suspend(host);
+	if (ret)
+		pm_generic_resume(dev);
+
 	return ret;
 }