This change is needed to properly lock I2C bus driver, which serves
DDC, otherwise there is an error in I2C bus driver user counting.
Prior to this change i2c_put_adapter() is misused, which may lead
to an overflow over zero of I2C bus driver user counter.
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@xxxxxxxxxx>
Cc: Jyri Sarha <jsarha@xxxxxx>
Cc: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
---
drivers/gpu/drm/tilcdc/tilcdc_tfp410.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c b/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c
index 6b8c5b3bf588..73f29dc75d33 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c
@@ -331,15 +331,13 @@ static int tfp410_probe(struct platform_device *pdev)
goto fail;
}
- tfp410_mod->i2c = of_find_i2c_adapter_by_node(i2c_node);
+ tfp410_mod->i2c = of_get_i2c_adapter_by_node(i2c_node);
+ of_node_put(i2c_node);
if (!tfp410_mod->i2c) {
dev_err(&pdev->dev, "could not get i2c\n");
- of_node_put(i2c_node);
goto fail;
}
- of_node_put(i2c_node);
-
tfp410_mod->gpio = of_get_named_gpio_flags(node, "powerdn-gpio",
0, NULL);
if (tfp410_mod->gpio < 0) {
--
2.8.1
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