From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Thu, 18 Sep 2014 19:33:49 +0000 (+0400)
Subject: mmc: tmio: prevent endless loop in tmio_mmc_set_clock()
X-Git-Tag: fixes-against-v3.18-rc2~127^2~26
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bb98d9d1d2e791f368295c9c09c9a03fe3ac0e62;p=pandora-kernel.git

mmc: tmio: prevent endless loop in tmio_mmc_set_clock()

I spent a couple of days with the driver just hanging due to me forgetting to
specify the external crystal frequency,  so that clk_get_rate() returned 0 and
thus the loop in tmio_mmc_set_clock() never ended. I don't think that's an
acceptable behavior, so I suggest that the minimum frequency is checked for 0
in tmio_mmc_host_probe().

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Ian Molton <ian.molton@codethink.co.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---

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