Commit f1a1bc87 authored by Uwe Kleine-König's avatar Uwe Kleine-König Committed by Bjorn Andersson
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soc: qcom: llcc: Handle a second device without data corruption 



Usually there is only one llcc device. But if there were a second, even
a failed probe call would modify the global drv_data pointer. So check
if drv_data is valid before overwriting it.

Signed-off-by: default avatarUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Fixes: a3134fb0 ("drivers: soc: Add LLCC driver")
Link: https://lore.kernel.org/r/20230926083229.2073890-1-u.kleine-koenig@pengutronix.de


Signed-off-by: default avatarBjorn Andersson <andersson@kernel.org>
parent 9b09c0f2

drivers/soc/qcom/llcc-qcom.c

+3 −0
Original line number Diff line number Diff line
@@ -1120,6 +1120,9 @@ static int qcom_llcc_probe(struct platform_device *pdev) 
	u32 version;

	struct regmap *regmap;



	if (!IS_ERR(drv_data))

		return -EBUSY;



	drv_data = devm_kzalloc(dev, sizeof(*drv_data), GFP_KERNEL);

	if (!drv_data) {

		ret = -ENOMEM;