r8169: fix handling rtl_readphy result
authorAndrzej Hajda <a.hajda@samsung.com>
Thu, 24 Sep 2015 14:00:24 +0000 (16:00 +0200)
committerDavid S. Miller <davem@davemloft.net>
Sun, 27 Sep 2015 05:48:32 +0000 (22:48 -0700)
commit72521ea07c0af37b8cb21228368128191c3f1a58
tree992c879587d14cf8d4015f13e25da3121defd953
parentf26bf06beae70175eda91e893190784bd1bcc7c0
r8169: fix handling rtl_readphy result

The function can return negative value.

The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2046107

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/realtek/r8169.c