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From a177276aa098aa47a100d51a13eaaef029604b6d Mon Sep 17 00:00:00 2001
From: Nicolas Boichat <drinkcat@chromium.org>
Date: Mon, 22 Oct 2018 10:55:06 +0800
Subject: [PATCH] mfd: mt6397: Do not call irq_domain_remove if PMIC unsupported
Git-commit: a177276aa098aa47a100d51a13eaaef029604b6d
Patch-mainline: v5.0-rc3
References: bsc#1051510

If the PMIC ID is unknown, the current code would call
irq_domain_remove and panic, as pmic->irq_domain is only
initialized by mt6397_irq_init.

Return immediately with an error, if the chip ID is unsupported.

Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/mfd/mt6397-core.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/mfd/mt6397-core.c b/drivers/mfd/mt6397-core.c
index 77b64bd64df3..ab24e176ef44 100644
--- a/drivers/mfd/mt6397-core.c
+++ b/drivers/mfd/mt6397-core.c
@@ -329,8 +329,7 @@ static int mt6397_probe(struct platform_device *pdev)
 
 	default:
 		dev_err(&pdev->dev, "unsupported chip: %d\n", id);
-		ret = -ENODEV;
-		break;
+		return -ENODEV;
 	}
 
 	if (ret) {
-- 
2.16.4