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coresight: Potential uninitialized variable in probe()

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The "drvdata->atclk" clock is optional, but if it gets set to an error
pointer then we're accidentally return an uninitialized variable instead
of success.

Fixes: 78e6427b4e ("coresight: funnel: Support static funnel")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20190620221237.3536-6-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dan Carpenter 2019-06-20 16:12:37 -06:00 committed by Greg Kroah-Hartman
parent 730766bae3
commit 0530ef6b41
1 changed files with 1 additions and 0 deletions
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1
drivers/hwtracing/coresight/coresight-funnel.c
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@ -244,6 +244,7 @@ static int funnel_probe(struct device *dev, struct resource *res)
}
pm_runtime_put(dev);
ret = 0;
out_disable_clk:
if (ret && !IS_ERR_OR_NULL(drvdata->atclk))