net/llc: make opt unsigned in llc_ui_setsockopt()
authorDan Carpenter <error27@gmail.com>
Fri, 10 Sep 2010 01:56:16 +0000 (01:56 +0000)
committerDavid S. Miller <davem@davemloft.net>
Mon, 13 Sep 2010 19:44:10 +0000 (12:44 -0700)
commit339db11b219f36cf7da61b390992d95bb6b7ba2e
tree38faf26336bb97d53dddf918d360914f709e2254
parenta505b3b30fc69904f858822a2aa95990a4bf7958
net/llc: make opt unsigned in llc_ui_setsockopt()

The members of struct llc_sock are unsigned so if we pass a negative
value for "opt" it can cause a sign bug.  Also it can cause an integer
overflow when we multiply "opt * HZ".

CC: stable@kernel.org
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/llc/af_llc.c