Messages in this thread Patch in this message | | | From | Dong Aisheng <> | Subject | [PATCH 1/1] net: phylib: add error checking if no phy found | Date | Tue, 13 Mar 2012 18:58:22 +0800 |
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From: Dong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org> --- 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
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