linux-kernel - [PATCH 4.4 087/192] [PATCH 091/135] mmc: sdhci: Do not BUG on invalid vdd

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Date:   Mon, 12 Sep 2016 18:59:56 +0200
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>,
        Venu Byravarasu <vbyravarasu@...dia.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: [PATCH 4.4 087/192] [PATCH 091/135] mmc: sdhci: Do not BUG on invalid vdd

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

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

[ Upstream commit 9d5de93f6d543b356e39e225988ef443a7bce34c ]

The driver may not be able to set the power correctly but that
is not a reason to BUG().

Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
Reviewed-by: Venu Byravarasu <vbyravarasu@...dia.com>
Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/mmc/host/sdhci.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1315,7 +1315,9 @@ static void sdhci_set_power(struct sdhci
 			pwr = SDHCI_POWER_330;
 			break;
 		default:
-			BUG();
+			WARN(1, "%s: Invalid vdd %#x\n",
+			     mmc_hostname(host->mmc), vdd);
+			break;
 		}
 	}