| Message ID | 1471379205-32304-2-git-send-email-vladimir_zapolskiy@mentor.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
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) {
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@mentor.com> Cc: Jyri Sarha <jsarha@ti.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> --- drivers/gpu/drm/tilcdc/tilcdc_tfp410.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)