[PATCH v1 1/1] gpio: sim: Initialize attribute allocated on the heap

[Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>]

The attributes on the heap must be initialized before use.
Neglecting that will produce an Oops in some configurations:

  BUG: key ffff000800eba398 has not been registered!

Initialize attribute allocated on the heap.

Fixes: 3f0279eb9e37 ("gpio: sim: new testing module")
Reported-by: Naresh Kamboju <naresh.kamboju@xxxxxxxxxx>
Tested-by: Naresh Kamboju <naresh.kamboju@xxxxxxxxxx>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
 drivers/gpio/gpio-sim.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpio/gpio-sim.c b/drivers/gpio/gpio-sim.c
index ea17289a869c..92493b98c51b 100644
--- a/drivers/gpio/gpio-sim.c
+++ b/drivers/gpio/gpio-sim.c
@@ -284,6 +284,7 @@ static int gpio_sim_setup_sysfs(struct gpio_sim_chip *chip)
 		line_attr->offset = i;
 
 		dev_attr = &line_attr->dev_attr;
+		sysfs_attr_init(&dev_attr->attr);
 
 		dev_attr->attr.name = devm_kasprintf(dev, GFP_KERNEL,
 						     "gpio%u", i);
-- 
2.30.2