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| author | Baolin Wang <baolin.wang@linaro.org> | 2019-09-27 15:10:45 +0800 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2019-10-04 21:07:44 -0700 |
| commit | 3070c41643609c66d33de3577fc9d8ca15932513 (patch) | |
| tree | 20c8dc5faf26a4e2804167efbca18cad82043dd4 /drivers/hwspinlock | |
| parent | 74cfa956cbead238cf6c5307be461a087c569c97 (diff) | |
| download | lwn-3070c41643609c66d33de3577fc9d8ca15932513.tar.gz lwn-3070c41643609c66d33de3577fc9d8ca15932513.zip | |
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>
Diffstat (limited to 'drivers/hwspinlock')
| -rw-r--r-- | drivers/hwspinlock/sprd_hwspinlock.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/hwspinlock/sprd_hwspinlock.c b/drivers/hwspinlock/sprd_hwspinlock.c index 7a8534f77737..d2104248013b 100644 --- a/drivers/hwspinlock/sprd_hwspinlock.c +++ b/drivers/hwspinlock/sprd_hwspinlock.c @@ -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); |