linux-kernel - [PATCH] clocksource: asm9260: Add a check for of_clk

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Message-Id: <20191016124330.22211-1-hslester96@gmail.com>
Date:   Wed, 16 Oct 2019 20:43:30 +0800
From:   Chuhong Yuan <hslester96@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org, Chuhong Yuan <hslester96@...il.com>
Subject: [PATCH] clocksource: asm9260: Add a check for of_clk_get

asm9260_timer_init misses a check for of_clk_get.
Add a check for it and print errors like other clocksource drivers.

Signed-off-by: Chuhong Yuan <hslester96@...il.com>
---
 drivers/clocksource/asm9260_timer.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/clocksource/asm9260_timer.c b/drivers/clocksource/asm9260_timer.c
index 9f09a59161e7..5b39d3701fa3 100644
--- a/drivers/clocksource/asm9260_timer.c
+++ b/drivers/clocksource/asm9260_timer.c
@@ -194,6 +194,10 @@ static int __init asm9260_timer_init(struct device_node *np)
 	}
 
 	clk = of_clk_get(np, 0);
+	if (IS_ERR(clk)) {
+		pr_err("Failed to get clk!\n");
+		return PTR_ERR(clk);
+	}
 
 	ret = clk_prepare_enable(clk);
 	if (ret) {
-- 
2.20.1