Wang Shilong 61f43e6880 Ext3: add necessary check in case IO error happens
As we know io error may happen when the function 'sb_getblk'
is called.Add necessary check for it

The patch also fix a coding style problem.

Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Signed-off-by: Jan Kara <jack@suse.cz>
2013-01-21 11:19:56 +01:00
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