From: Sergei Shtylyov <sergei.shtyl...@cogentembedded.com> The kernel oopses in phy_lookup() due to 'phy->init_data' being NULL if we register PHYs from a device tree probing driver and then call phy_get() on a device that has no representation in the device tree (e.g. a PCI device). Checking the pointer before dereferening it and skipping an interation if it's NULL prevents this kernel oops.
Signed-off-by: Sergei Shtylyov <sergei.shtyl...@cogentembedded.com> Signed-off-by: Kishon Vijay Abraham I <kis...@ti.com> --- drivers/phy/phy-core.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c index 623b71c..c64a2f3 100644 --- a/drivers/phy/phy-core.c +++ b/drivers/phy/phy-core.c @@ -64,6 +64,9 @@ static struct phy *phy_lookup(struct device *device, const char *port) class_dev_iter_init(&iter, phy_class, NULL, NULL); while ((dev = class_dev_iter_next(&iter))) { phy = to_phy(dev); + + if (!phy->init_data) + continue; count = phy->init_data->num_consumers; consumers = phy->init_data->consumers; while (count--) { -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/