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authorShaohui Xie <Shaohui.Xie@nxp.com>2016-05-10 17:42:26 +0800
committerDavid S. Miller <davem@davemloft.net>2016-05-10 15:59:49 -0400
commit84a527a41f38a80353f185d05e41b021e1ff672b (patch)
tree5ef4c6cf2bbb382b10276f8344453a03b2ebfaa7 /drivers/net/phy/phy.c
parent10a81980fc47e64ffac26a073139813d3f697b64 (diff)
downloadlinux-stericsson-84a527a41f38a80353f185d05e41b021e1ff672b.tar.gz
net: phylib: fix interrupts re-enablement in phy_start
If phy was suspended and is starting, current driver always enable phy's interrupts, if phy works in polling, phy can raise unexpected interrupt which will not be handled, the interrupt will block system enter suspend again. So interrupts should only be re-enabled if phy works in interrupt. Signed-off-by: Shaohui Xie <Shaohui.Xie@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/phy.c')
-rw-r--r--drivers/net/phy/phy.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 5590b9c182c9..445fc5aef308 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -790,9 +790,11 @@ void phy_start(struct phy_device *phydev)
break;
case PHY_HALTED:
/* make sure interrupts are re-enabled for the PHY */
- err = phy_enable_interrupts(phydev);
- if (err < 0)
- break;
+ if (phydev->irq != PHY_POLL) {
+ err = phy_enable_interrupts(phydev);
+ if (err < 0)
+ break;
+ }
phydev->state = PHY_RESUMING;
do_resume = true;