From: Helge Deller <deller@gmx.de>
Date: Sat, 2 Mar 2013 19:01:05 +0000 (+0100)
Subject: parisc: fix compile warnings triggered by atomic_sub(sizeof(),v)
X-Git-Tag: v3.9-rc1~6^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8527ed4a7086e7312b8d021ea36d367f7e378c2e;p=pandora-kernel.git

parisc: fix compile warnings triggered by atomic_sub(sizeof(),v)

This fixes compile warnings like this one:
net/ipv4/igmp.c: In function ‘ip_mc_leave_group’:
net/ipv4/igmp.c:1898:3: warning: overflow in implicit constant conversion [-Woverflow]

atomic_sub() is defined as __atomic_add_return(-(VAL),(v))))
and if VAL is of type unsigned int (as returned by sizeof()), negating
this value will overflow. Fix this by type-casting VAL to int type.

Signed-off-by: Helge Deller <deller@gmx.de>
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