usb: host: ehci-msm: fix PHY error handling

PHY layer no longer returns NULL. We must
switch from IS_ERR_OR_NULL() to IS_ERR().

Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Felipe Balbi 2013-03-15 11:02:56 +02:00
commit e299bd93e4