From: Sujit Reddy Thumma <sthumma@codeaurora.org>
Date: Mon, 11 Aug 2014 12:40:37 +0000 (+0300)
Subject: sd: Avoid sending medium write commands if device is write protected
X-Git-Tag: fixes-for-v3.18-merge-window~25^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2eefd57b97609949ae40952da2dea338e7d9a125;p=pandora-kernel.git

sd: Avoid sending medium write commands if device is write protected

The SYNCHRONIZE_CACHE command is a medium write command and hence can
fail when the device is write protected. Avoid sending such commands by
making sure that write-cache-enable is disabled even though the device
claim to support it.

Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>
Signed-off-by: Dolev Raviv <draviv@codeaurora.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Venkatesh Srinivas <venkateshs@google.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---

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