Roger Pau Monné 7803499440 xen-netfront: remove pointless assignment in xn_ioctl
The variable error is assigned to 0 before entering the switch.
Assigning error to 0 before break pointless rewrites the real error
value that should be returned.

Coverity ID:		1304974
Submitted by:		Wei Liu <wei.liu2@citrix.com>
Reviewed by:		royger
Sponsored by:		Citrix Systems R&D
Differential revision:	https://reviews.freebsd.org/D5250
2016-02-11 11:50:31 +00:00
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