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From:   Tian Tao <tiantao6@hisilicon.com>
To:     <airlied@linux.ie>, <daniel@ffwll.ch>, <tzimmermann@suse.de>,
        <kraxel@redhat.com>, <alexander.deucher@amd.com>,
        <tglx@linutronix.de>
CC:     <dri-devel@lists.freedesktop.org>, <linux-kernel@vger.kernel.org>
Subject: [PATCH] drm/hisilicon: Remove drm_dev_put in hibmc
Date:   Tue, 22 Dec 2020 19:55:56 +0800
Message-ID: <1608638156-7879-1-git-send-email-tiantao6@hisilicon.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

Hibmc use the devm_drm_dev_alloc function in hibmc_pci_probe, if
hibmc_pci_probe returns non-zero, devm_drm_dev_alloc will call
devm_drm_dev_init, which will call devm_drm_dev_init_release to
release drm_dev_put. There is no need for hibmc to call
drm_dev_put separately.

Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
---
 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
index 7159018..0d4e902 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
@@ -332,13 +332,13 @@ static int hibmc_pci_probe(struct pci_dev *pdev,
 	ret = pcim_enable_device(pdev);
 	if (ret) {
 		drm_err(dev, "failed to enable pci device: %d\n", ret);
-		goto err_free;
+		goto err_return;
 	}
 
 	ret = hibmc_load(dev);
 	if (ret) {
 		drm_err(dev, "failed to load hibmc: %d\n", ret);
-		goto err_free;
+		goto err_return;
 	}
 
 	ret = drm_dev_register(dev, 0);
@@ -354,9 +354,7 @@ static int hibmc_pci_probe(struct pci_dev *pdev,
 
 err_unload:
 	hibmc_unload(dev);
-err_free:
-	drm_dev_put(dev);
-
+err_return:
 	return ret;
 }
 
-- 
2.7.4