net: phy: fixed: allow setting no update_link callback
authorFlorian Fainelli <f.fainelli@gmail.com>
Wed, 21 Jan 2015 00:41:59 +0000 (16:41 -0800)
committerDavid S. Miller <davem@davemloft.net>
Mon, 26 Jan 2015 00:02:13 +0000 (16:02 -0800)
commit799d44442c4821dec65fc59baa4ddc6783a25c54
tree0b1654e49e30cd05524b04829eb2a4df807b3ed0
parentc2943f14534bdc4230f4da6dcd4ea03c5d8c8162
net: phy: fixed: allow setting no update_link callback

fixed_phy_set_link_update() contains an early check against a NULL
callback pointer, which basically prevents us from removing any
previous callback we may have set. The users of the fp->link_update
callback deal with a NULL callback just fine, so we really want to allow
"removing" a link_update callback to avoid dangling callback pointers
during e.g: module removal.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/phy/fixed_phy.c