PM / Domains: Do not print PM domain add error message if EPROBE_DEFER

EPROBE_DEFER is not an error, hence printing an error message like

    renesas_irqc e61c0000.interrupt-controller: failed to add to PM domain always-on: -517

may confuse the user.

Suppress the error message in case of EPROBE_DEFER to fix this.

Reported-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index 7b4d41ff95062c62ba04cf58066257a1ef6579e1..46e7f6052c9b36e8019040ccd372c7454a1aac1f 100644 (file)
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -2031,8 +2031,9 @@ int genpd_dev_pm_attach(struct device *dev)
        mutex_unlock(&gpd_list_lock);
 
        if (ret < 0) {
-               dev_err(dev, "failed to add to PM domain %s: %d",
-                       pd->name, ret);
+               if (ret != -EPROBE_DEFER)
+                       dev_err(dev, "failed to add to PM domain %s: %d",
+                               pd->name, ret);
                goto out;
        }