From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Tue, 8 Feb 2011 04:59:50 +0000 (+0000)
Subject: sparc: fix size argument to find_next_zero_bit()
X-Git-Tag: v2.6.38-rc6~27^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=711c71a092ccedf5e24cff25e577bfa0148fce66;p=pandora-kernel.git

sparc: fix size argument to find_next_zero_bit()

iommu_alloc_ctx() finds a zero bit in iommu->ctx_bitmap.  It starts
searching from iommu->ctx_lowest_free to the end of the bitmap.
But the size argument to find_next_zero_bit() in iommu_alloc_ctx()
is wrong.  It should be the bitmap size, not the maximum size to
search from the offset argument.

Fortunately iommu->ctx_lowest_free is almost unused and it will not
be more than 1. So the bug wasted only 1-bit at the end of
iommu->ctx_bitmap.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: sparclinux@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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