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(parent: 657d598) | patch
mmc: sdhci: fix NULL dereference in sdhci_request() tuning
authorChris Ball <cjb@laptop.org>
Mon, 5 Nov 2012 19:29:49 +0000 (14:29 -0500)
committerChris Ball <cjb@laptop.org>
Wed, 7 Nov 2012 20:02:05 +0000 (15:02 -0500)
commit14efd957209461bbdf285bf0d67e931955d04a4c
treee4e057308b28671aece200cde1516210f17af611tree | snapshot (tar.gz zip)
parent657d59823c095e8f03e2744d765f53700331ff8fcommit | diff
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+]
drivers/mmc/host/sdhci.c diff | blob | blame | history