cem a476ed15dd vfs_bio.c: Apply cleanups motivated by Coverity analysis
It is believed that the conditions Coverity indicated were actually
impossible to hit.  So this patch just adds a cleanup to only compute
v_mount once in brelse(), and in vfs_bio_getpages() always initializes error
to zero to appease the static analyzer.

No functional change intended.

Submitted by:	Darrick Lew <darrick.freebsd AT gmail.com>
Reviewed by:	kib
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D14613
2018-03-14 22:11:45 +00:00
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