tree 6e1ca61dc320ede63d38b91def87edeaae31a30c
parent 490cc7d03c21871eef5949ba77a18b0c7ef70ef5
author Wei Liu <wei.liu2@citrix.com> 1407841169 +0100
committer David S. Miller <davem@davemloft.net> 1407985603 -0700

xen-netback: fix debugfs write length check

Enlarge buffer size and check input length properly, so that we don't
misuse -ENOSPC.

Note that command like "kickXXXX" is still allowed, that's one patch for
another day if we really want to be very strict on this.

Reported-by: SeeChen Ng <seechen81@gmail.com>
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Cc: Zoltan Kiss <zoltan.kiss@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>