mfd: altera-sysmgr: fix device leak on sysmgr regmap lookup

Make sure to drop the reference taken to the sysmgr platform device when retrieving its driver data.

Note that holding a reference to a device does not prevent its driver data from going away.

---
 drivers/mfd/altera-sysmgr.c | 2 ++
 1 file changed, 2 insertions(+)

index fb5f988e61f3..90c6902d537d 100644
@@ -117,6 +117,8 @@ struct regmap *altr_sysmgr_regmap_lookup_by_phandle(struct device_node *np,
 
 	sysmgr = dev_get_drvdata(dev);
 
+	put_device(dev);
+
 	return sysmgr->regmap;
 }
 EXPORT_SYMBOL_GPL(altr_sysmgr_regmap_lookup_by_phandle);

2.49.1

…

How do you think about to increase the application of scope-based resource management?
https://elixir.bootlin.com/linux/v6.17-rc7/source/include/linux/device.h#L1180

Regards,
Markus

Applied, thanks!

[1/1] mfd: altera-sysmgr: fix device leak on sysmgr regmap lookup

      commit: e6ce75fac4a299805939e33f9f104829ba9ffdcc

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Lee Jones [李琼斯]