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authorDavid S. Miller <davem@davemloft.net>2018-04-26 05:04:22 +0200
committerDavid S. Miller <davem@davemloft.net>2018-04-26 05:04:22 +0200
commita9537c937c1790b62de5e2789e67c0bf439b11ea (patch)
treef258739642417d820e1683e97966a3804f323ba9 /drivers/net/phy
parentMerge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher... (diff)
parentMerge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf (diff)
downloadlinux-a9537c937c1790b62de5e2789e67c0bf439b11ea.tar.xz
linux-a9537c937c1790b62de5e2789e67c0bf439b11ea.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Merging net into net-next to help the bpf folks avoid some really ugly merge conflicts. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy')
-rw-r--r--drivers/net/phy/phy_device.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index ac23322a32e1..9e4ba8e80a18 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -535,8 +535,17 @@ static int get_phy_id(struct mii_bus *bus, int addr, u32 *phy_id,
/* Grab the bits from PHYIR1, and put them in the upper half */
phy_reg = mdiobus_read(bus, addr, MII_PHYSID1);
- if (phy_reg < 0)
+ if (phy_reg < 0) {
+ /* if there is no device, return without an error so scanning
+ * the bus works properly
+ */
+ if (phy_reg == -EIO || phy_reg == -ENODEV) {
+ *phy_id = 0xffffffff;
+ return 0;
+ }
+
return -EIO;
+ }
*phy_id = (phy_reg & 0xffff) << 16;