We may get -EBUSY from runtime PM and that most likely means some
earlier wlcore command did not complete yet and further calls may
fail. Let's add a warning to make it easier to track down and fix
such issues in wlcore code.
Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
---
drivers/net/wireless/ti/wlcore/sdio.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/net/wireless/ti/wlcore/sdio.c b/drivers/net/wireless/ti/wlcore/sdio.c
--- a/drivers/net/wireless/ti/wlcore/sdio.c
+++ b/drivers/net/wireless/ti/wlcore/sdio.c
@@ -188,6 +188,13 @@ static int wl12xx_sdio_power_off(struct wl12xx_sdio_glue *glue)
return error;
}
+ if (error == -EBUSY) {
+ dev_warn(&card->dev,
+ "%s: wlcore write did not yet complete?\n",
+ __func__);
+ dump_stack();
+ }
+
return 0;
}
--
2.17.0
