Commit 3070c416 authored Sep 27, 2019 by Baolin Wang Committed by Bjorn Andersson Oct 04, 2019

hwspinlock: sprd: Check the return value of clk_prepare_enable()



We must check the return value of clk_prepare_enable() to make sure the
hardware spinlock controller can be enabled successfully, otherwise we
should return error.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

parent 74cfa956

drivers/hwspinlock/sprd_hwspinlock.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -105,7 +105,9 @@ static int sprd_hwspinlock_probe(struct platform_device *pdev)
		return PTR_ERR(sprd_hwlock->clk);
		}

		clk_prepare_enable(sprd_hwlock->clk);
		ret = clk_prepare_enable(sprd_hwlock->clk);
		if (ret)
		return ret;

		/* set the hwspinlock to record user id to identify subsystems */
		writel(HWSPINLOCK_USER_BITS, sprd_hwlock->base + HWSPINLOCK_RECCTRL);

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