From: Chris Ball <cjb@laptop.org>
Date: Tue, 29 Mar 2011 04:46:12 +0000 (-0400)
Subject: mmc: sdhci-pci: Fix error case in sdhci_pci_probe_slot()
X-Git-Tag: v2.6.39-rc6~4^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9fdcdbb0d84922e7ccda2f717a04ea62629f7e18;p=pandora-kernel.git

mmc: sdhci-pci: Fix error case in sdhci_pci_probe_slot()

If pci_ioremap_bar() fails during probe, we "goto release;" and free the
host, but then we return 0 -- which tells sdhci_pci_probe() that the probe
succeeded.  Since we think the probe succeeded, when we unload sdhci we'll
go to sdhci_pci_remove_slot() and it will try to dereference slot->host,
which is now NULL because we freed it in the error path earlier.

The patch simply sets ret appropriately, so that sdhci_pci_probe() will
detect the failure immediately and bail out.

Signed-off-by: Chris Ball <cjb@laptop.org>
Cc: <stable@kernel.org>
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