phy: mapphone-mdm6600: Fix PM error handling in phy_mdm6600_probe
[ Upstream commit d644e0d79829b1b9a14beedbdb0dc1256fc3677d ]
The pm_runtime_enable will increase power disable depth.
If the probe fails, we should use pm_runtime_disable() to balance
pm_runtime_enable(). And use pm_runtime_dont_use_autosuspend() to
undo pm_runtime_use_autosuspend()
In the PM Runtime docs:
Drivers in ->remove() callback should undo the runtime PM changes done
in ->probe(). Usually this means calling pm_runtime_disable(),
pm_runtime_dont_use_autosuspend() etc.
We should do this in error handling.
Fixes: f7f50b2a7b05 ("phy: mapphone-mdm6600: Add runtime PM support for n_gsm on USB suspend")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220301024615.31899-1-linmq006@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
diff --git a/drivers/phy/motorola/phy-mapphone-mdm6600.c b/drivers/phy/motorola/phy-mapphone-mdm6600.c
index 5172971..3cd4d51 100644
--- a/drivers/phy/motorola/phy-mapphone-mdm6600.c
+++ b/drivers/phy/motorola/phy-mapphone-mdm6600.c
@@ -629,7 +629,8 @@ static int phy_mdm6600_probe(struct platform_device *pdev)
cleanup:
if (error < 0)
phy_mdm6600_device_power_off(ddata);
-
+ pm_runtime_disable(ddata->dev);
+ pm_runtime_dont_use_autosuspend(ddata->dev);
return error;
}