Hello.

On 01/27/2014 10:23 PM, Josh Boyer wrote:

the PHY layer is supposed to be optional,
considering some PHY have no control bus
for SW to poke around.

After commit 1ae5799 (usb: hcd: Initialize
USB phy if needed) any HCD which didn't provide
a PHY driver would emit annoying error messages.

In this patch we're decreasing those messages
to dev_dbg for debugging only and so we know where
they're coming from.

Reported-by: Josh Boyer <jwbo...@fedoraproject.org>
Signed-off-by: Felipe Balbi <ba...@ti.com>
Signed-off-by: Josh Boyer <jwbo...@fedoraproject.org>
---

v2: Switch to using dev_dbg

  drivers/usb/phy/phy.c | 8 +++-----
  1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/phy/phy.c b/drivers/usb/phy/phy.c
index e6f61e4..db18011 100644
--- a/drivers/usb/phy/phy.c
+++ b/drivers/usb/phy/phy.c
@@ -130,7 +130,7 @@ struct usb_phy *usb_get_phy(enum usb_phy_type type)

        phy = __usb_find_phy(&phy_list, type);
        if (IS_ERR(phy) || !try_module_get(phy->dev->driver->owner)) {
-               pr_err("unable to find transceiver of type %s\n",
+               dev_dbg(phy->dev, "unable to find transceiver of type %s\n",

'phy' is possibly invalid (error ptr) at this point, you cannot dereference it.

                        usb_phy_type_string(type));
                goto err0;
        }
@@ -228,7 +228,7 @@ struct usb_phy *usb_get_phy_dev(struct device *dev, u8 
index)

        phy = __usb_find_phy_dev(dev, &phy_bind_list, index);
        if (IS_ERR(phy) || !try_module_get(phy->dev->driver->owner)) {
-               pr_err("unable to find transceiver\n");
+               dev_dbg(dev, "unable to find transceiver\n");

   Same here.

WBR, Sergei

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