[PATCH 1/1] net: phylib: add error checking if no phy found
flat view
STALE5313d
From: Dong Aisheng <hidden>
Date: 2012-03-13 10:56:21
Also in:
linux-arm-kernel, lkml
Subsystem:
ethernet phy library, networking drivers, the rest · Maintainers:
Andrew Lunn, Heiner Kallweit, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Dong Aisheng <redacted> Signed-off-by: Dong Aisheng <redacted> --- drivers/net/phy/mdio_bus.c | 11 ++++++++++- 1 files changed, 10 insertions(+), 1 deletions(-)
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 88cc5db..d8e044d 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c@@ -101,6 +101,7 @@ static struct class mdio_bus_class = { int mdiobus_register(struct mii_bus *bus) { int i, err; + u32 phynum = 0; if (NULL == bus || NULL == bus->name || NULL == bus->read ||
@@ -134,12 +135,20 @@ int mdiobus_register(struct mii_bus *bus) if (IS_ERR(phydev)) { err = PTR_ERR(phydev); goto error; + } else if (phydev != NULL) { + phynum++; } } } + if (!phynum) { + err = -ENODEV; + printk(KERN_ERR "%s: no phys found\n", bus->name); + goto error; + } + bus->state = MDIOBUS_REGISTERED; - pr_info("%s: probed\n", bus->name); + pr_info("%s: %d phys probed\n", bus->name, phynum); return 0; error:
--
1.7.0.4