rtc: stm32: manage the get_irq probe defer case

Manage the -EPROBE_DEFER error case for the wake IRQ.

Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Acked-by: Amelie Delaunay <amelie.delaunay@st.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

1 files changed, 6 insertions, 3 deletions

diff --git a/drivers/rtc/rtc-stm32.c b/drivers/rtc/rtc-stm32.c
index c5908cfea234..8e6c9b3bcc29 100644
--- a/drivers/rtc/rtc-stm32.c
+++ b/drivers/rtc/rtc-stm32.c
@@ -788,11 +788,14 @@ static int stm32_rtc_probe(struct platform_device *pdev)
         ret = device_init_wakeup(&pdev->dev, true);
         if (rtc->data->has_wakeirq) {
                 rtc->wakeirq_alarm = platform_get_irq(pdev, 1);
-                if (rtc->wakeirq_alarm <= 0)
-                        ret = rtc->wakeirq_alarm;
-                else
+                if (rtc->wakeirq_alarm > 0) {
                         ret = dev_pm_set_dedicated_wake_irq(&pdev->dev,
                                                             rtc->wakeirq_alarm);
+                } else {
+                        ret = rtc->wakeirq_alarm;
+                        if (rtc->wakeirq_alarm == -EPROBE_DEFER)
+                                goto err;
+                }
         }
         if (ret)
                 dev_warn(&pdev->dev, "alarm can't wake up the system: %d", ret);