linux-kernel - [PATCH 2/2] phy: samsung-ufs: ufs: exit on first reported error

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Date: Fri, 26 Apr 2024 11:41:29 +0100
From: Peter Griffin <peter.griffin@...aro.org>
To: vkoul@...nel.org,
	kishon@...nel.org,
	krzysztof.kozlowski@...aro.org
Cc: linux-phy@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	tudor.ambarus@...aro.org,
	andre.draszik@...aro.org,
	saravanak@...gle.com,
	willmcvicker@...gle.com,
	kernel-team@...roid.com,
	Peter Griffin <peter.griffin@...aro.org>
Subject: [PATCH 2/2] phy: samsung-ufs: ufs: exit on first reported error

To preserve the err value, exit the loop immediately if an error
is returned.

Fixes: f2c6d0fa197a ("phy: samsung-ufs: use exynos_get_pmu_regmap_by_phandle() to obtain PMU regmap")
Signed-off-by: Peter Griffin <peter.griffin@...aro.org>
---
 drivers/phy/samsung/phy-samsung-ufs.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/phy/samsung/phy-samsung-ufs.c b/drivers/phy/samsung/phy-samsung-ufs.c
index ffc46c953ed6..6c5d41552649 100644
--- a/drivers/phy/samsung/phy-samsung-ufs.c
+++ b/drivers/phy/samsung/phy-samsung-ufs.c
@@ -99,12 +99,18 @@ static int samsung_ufs_phy_calibrate(struct phy *phy)
 
 	for_each_phy_lane(ufs_phy, i) {
 		if (ufs_phy->ufs_phy_state == CFG_PRE_INIT &&
-		    ufs_phy->drvdata->wait_for_cal)
+		    ufs_phy->drvdata->wait_for_cal) {
 			err = ufs_phy->drvdata->wait_for_cal(phy, i);
+			if (err)
+				goto out;
+		}
 
 		if (ufs_phy->ufs_phy_state == CFG_POST_PWR_HS &&
-		    ufs_phy->drvdata->wait_for_cdr)
+		    ufs_phy->drvdata->wait_for_cdr) {
 			err = ufs_phy->drvdata->wait_for_cdr(phy, i);
+			if (err)
+				goto out;
+		}
 	}
 
 	/**
-- 
2.44.0.769.g3c40516874-goog