[PATCH 5.15 267/532] usb: dwc2: platform: Improve error reporting for problems during .remove()

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From: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>

[ Upstream commit 55f223b8b408cbfd85fb1c5b74ab85ccab319a69 ]

Returning an error value in a platform driver's remove callback results in
a generic error message being emitted by the driver core, but otherwise it
doesn't make a difference. The device goes away anyhow.

For each case where ret is non-zero the driver already emits an error
message, so suppress the generic error message by returning zero
unconditionally. (Side note: The return value handling was unreliable
anyhow as the value returned by dwc2_exit_hibernation() was overwritten
anyhow if hsotg->in_ppd was non-zero.)

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Acked-by: Minas Harutyunyan <hminas@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20221017195914.1426297-1-u.kleine-koenig@xxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Stable-dep-of: ada050c69108 ("usb: dwc2: Fix some error handling paths")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/usb/dwc2/platform.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index 7a09476e9f193..ad8c7de4bfb19 100644
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -355,7 +355,7 @@ static int dwc2_driver_remove(struct platform_device *dev)
 	reset_control_assert(hsotg->reset);
 	reset_control_assert(hsotg->reset_ecc);
 
-	return ret;
+	return 0;
 }
 
 /**
-- 
2.39.2






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