[PATCH v2 2/11] drm: hdlcd: Use devm_of_reserved_mem_device_init()

[Mukesh Ojha <mukesh.ojha@oss.qualcomm.com>]

Switch to devm_of_reserved_mem_device_init() so the reserved memory
region is released automatically on probe failure or device unbind.
Remove the three explicit of_reserved_mem_device_release() calls in
the setup_fail error path, the bind error path, and hdlcd_drm_unbind().

Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Mukesh Ojha <mukesh.ojha@oss.qualcomm.com>
---
 drivers/gpu/drm/arm/hdlcd_drv.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/arm/hdlcd_drv.c b/drivers/gpu/drm/arm/hdlcd_drv.c
index 81d45f2dd6a7..67466fd441d5 100644
--- a/drivers/gpu/drm/arm/hdlcd_drv.c
+++ b/drivers/gpu/drm/arm/hdlcd_drv.c
@@ -134,7 +134,7 @@ static int hdlcd_load(struct drm_device *drm, unsigned long flags)
 		version & HDLCD_VERSION_MINOR_MASK);
 
 	/* Get the optional framebuffer memory resource */
-	ret = of_reserved_mem_device_init(drm->dev);
+	ret = devm_of_reserved_mem_device_init(drm->dev);
 	if (ret && ret != -ENODEV)
 		return ret;
 
@@ -164,8 +164,6 @@ static int hdlcd_load(struct drm_device *drm, unsigned long flags)
 irq_fail:
 	drm_crtc_cleanup(&hdlcd->crtc);
 setup_fail:
-	of_reserved_mem_device_release(drm->dev);
-
 	return ret;
 }
 
@@ -316,7 +314,6 @@ static int hdlcd_drm_bind(struct device *dev)
 	of_node_put(hdlcd->crtc.port);
 	hdlcd->crtc.port = NULL;
 	hdlcd_irq_uninstall(hdlcd);
-	of_reserved_mem_device_release(drm->dev);
 err_free:
 	dev_set_drvdata(dev, NULL);
 	return ret;
@@ -338,7 +335,6 @@ static void hdlcd_drm_unbind(struct device *dev)
 	pm_runtime_put(dev);
 	if (pm_runtime_enabled(dev))
 		pm_runtime_disable(dev);
-	of_reserved_mem_device_release(dev);
 	dev_set_drvdata(dev, NULL);
 }
 
-- 
2.55.0