From: Chris Ball <cjb@laptop.org>
Date: Mon, 5 Nov 2012 19:29:49 +0000 (-0500)
Subject: mmc: sdhci: fix NULL dereference in sdhci_request() tuning
X-Git-Tag: v3.7-rc5~8^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=14efd957209461bbdf285bf0d67e931955d04a4c;p=pandora-kernel.git

mmc: sdhci: fix NULL dereference in sdhci_request() tuning

Commit 473b095a72a9 ("mmc: sdhci: fix incorrect command used in tuning")
introduced a NULL dereference at resume-time if an SD 3.0 host controller
raises the SDHCI_NEEDS_TUNING flag while no card is inserted.  Seen on an
OLPC XO-4 with sdhci-pxav3, but presumably affects other controllers too.

Signed-off-by: Chris Ball <cjb@laptop.org>
Cc: stable <stable@vger.kernel.org> [3.3+]
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