From: Wen Yang Date: Mon, 6 May 2019 07:05:17 +0000 (-0400) Subject: media: mtk-vcodec: fix leaked of_node references X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=15b5c5b1dce9bc19a0f00697ce64ecd819cfd109;p=openwrt%2Fstaging%2Fblogic.git media: mtk-vcodec: fix leaked of_node references The call to of_find_device_by_node returns a node pointer with refcount incremented thus it must be explicitly decremented after the last usage. Detected by coccinelle with the following warnings: drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c:60:3-9: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 38, but without a corresponding object release within this function. drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c:63:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 38, but without a corresponding object release within this function. drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c:72:3-9: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 38, but without a corresponding object release within this function. Signed-off-by: Wen Yang Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c index 7884465afcd2..11c45c556e88 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c @@ -42,8 +42,8 @@ int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev) } pdev = of_find_device_by_node(node); + of_node_put(node); if (WARN_ON(!pdev)) { - of_node_put(node); return -1; } pm->larbvdec = &pdev->dev;