4.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
[ Upstream commit c774f2564c0086c23f5269fd4691f233756bf075 ]
If device is unbound, the soc_dev should be unregistered to prevent
memory leak.
Fixes: a2974c9c1f83 ("soc: add driver for the ARM RealView")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Link: https://lore.kernel.org/20240825-soc-dev-fixes-v1-3-ff4b35abed83@xxxxxxxxxx
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/soc/versatile/soc-realview.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/soc/versatile/soc-realview.c b/drivers/soc/versatile/soc-realview.c
index 98b6c60de7f64..a9220701c190b 100644
--- a/drivers/soc/versatile/soc-realview.c
+++ b/drivers/soc/versatile/soc-realview.c
@@ -8,6 +8,7 @@
* published by the Free Software Foundation.
*
*/
+#include <linux/device.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/slab.h>
@@ -83,6 +84,13 @@ static ssize_t realview_get_build(struct device *dev,
static struct device_attribute realview_build_attr =
__ATTR(build, S_IRUGO, realview_get_build, NULL);
+static void realview_soc_socdev_release(void *data)
+{
+ struct soc_device *soc_dev = data;
+
+ soc_device_unregister(soc_dev);
+}
+
static int realview_soc_probe(struct platform_device *pdev)
{
struct regmap *syscon_regmap;
@@ -110,6 +118,11 @@ static int realview_soc_probe(struct platform_device *pdev)
if (IS_ERR(soc_dev))
return -ENODEV;
+ ret = devm_add_action_or_reset(&pdev->dev, realview_soc_socdev_release,
+ soc_dev);
+ if (ret)
+ return ret;
+
ret = regmap_read(syscon_regmap, REALVIEW_SYS_ID_OFFSET,
&realview_coreid);
if (ret)
--
2.43.0
