From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Sat, 29 Nov 2014 12:50:21 +0000 (+0300)
Subject: dm space map metadata: fix sm_bootstrap_get_nr_blocks()
X-Git-Tag: omap-for-v3.19/fixes-for-merge-window~22^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c1c6156fe4d4577444b769d7edd5dd503e57bbc9;p=pandora-kernel.git

dm space map metadata: fix sm_bootstrap_get_nr_blocks()

This function isn't right and it causes a static checker warning:

	drivers/md/dm-thin.c:3016 maybe_resize_data_dev()
	error: potentially using uninitialized 'sb_data_size'.

It should set "*count" and return zero on success the same as the
sm_metadata_get_nr_blocks() function does earlier.

Fixes: 3241b1d3e0aa ('dm: add persistent data library')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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