From: Jason Wang
Date: Mon, 4 Jul 2016 13:53:38 +0800
> Stephen Rothwell reports a build warnings(powerpc ppc64_defconfig)
>
> drivers/net/tun.c: In function 'tun_do_read.part.5':
> /home/sfr/next/next/drivers/net/tun.c:1491:6: warning: 'err' may be
> used uninitialized in this function [-Wmayb
Stephen Rothwell reports a build warnings(powerpc ppc64_defconfig)
drivers/net/tun.c: In function 'tun_do_read.part.5':
/home/sfr/next/next/drivers/net/tun.c:1491:6: warning: 'err' may be
used uninitialized in this function [-Wmaybe-uninitialized]
int err;
This is because tun_ring_recv() may r
