linux-kernel - [PATCH 1/2] watchdog: dw_wdt: Fix the error handling path of dw_wdt_drv

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Date:   Wed, 26 Apr 2023 08:52:48 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Steffen Trumtrar <s.trumtrar@...gutronix.de>
Cc:     linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Wim Van Sebroeck <wim@...ana.be>,
        linux-watchdog@...r.kernel.org
Subject: [PATCH 1/2] watchdog: dw_wdt: Fix the error handling path of dw_wdt_drv_probe()

The commit in Fixes has only updated the remove function and missed the
error handling path of the probe.

Add the missing reset_control_assert() call.

Fixes: 65a3b6935d92 ("watchdog: dw_wdt: get reset lines from dt")
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 drivers/watchdog/dw_wdt.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/watchdog/dw_wdt.c b/drivers/watchdog/dw_wdt.c
index 6f88bd81f8a1..a1354a59eb37 100644
--- a/drivers/watchdog/dw_wdt.c
+++ b/drivers/watchdog/dw_wdt.c
@@ -635,7 +635,7 @@ static int dw_wdt_drv_probe(struct platform_device *pdev)
 
 	ret = dw_wdt_init_timeouts(dw_wdt, dev);
 	if (ret)
-		goto out_disable_clk;
+		goto out_assert_rst;
 
 	wdd = &dw_wdt->wdd;
 	wdd->ops = &dw_wdt_ops;
@@ -667,12 +667,15 @@ static int dw_wdt_drv_probe(struct platform_device *pdev)
 
 	ret = watchdog_register_device(wdd);
 	if (ret)
-		goto out_disable_pclk;
+		goto out_assert_rst;
 
 	dw_wdt_dbgfs_init(dw_wdt);
 
 	return 0;
 
+out_assert_rst:
+	reset_control_assert(dw_wdt->rst);
+
 out_disable_pclk:
 	clk_disable_unprepare(dw_wdt->pclk);
 
-- 
2.34.1