usb: dwc3: don't log probe deferrals; but do log other error codes

BugLink: https://bugs.launchpad.net/bugs/1857158
[ Upstream commit 408d3ba006af57380fa48858b39f72fde6405031 ]

It's not very useful to repeat a bunch of probe deferral errors. And
it's also not very useful to log "failed" without telling the error
code.

Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 03414aca27e7e656eb3d7481134c16d7e89b1c41..1470d0ce10da4fde972ee120a56fdc065f32ca60 100644 (file)
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1249,7 +1249,8 @@ static int dwc3_probe(struct platform_device *pdev)
 
        ret = dwc3_core_init(dwc);
        if (ret) {
-               dev_err(dev, "failed to initialize core\n");
+               if (ret != -EPROBE_DEFER)
+                       dev_err(dev, "failed to initialize core: %d\n", ret);
                goto err4;
        }