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([2402:e280:214c:86:9744:8dfe:8ee3:9c0a]) by smtp.gmail.com with ESMTPSA id e13-20020a170902ed8d00b001e4464902bcsm20539571plj.60.2024.04.29.09.37.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 29 Apr 2024 09:37:42 -0700 (PDT) From: R Sundar To: benjamin.mugnier@foss.st.com, sylvain.petinot@foss.st.com, mchehab@kernel.org, sakari.ailus@linux.intel.com, laurent.pinchart@ideasonboard.com Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, skhan@linuxfoundation.org, javier.carrasco.cruz@gmail.com, R Sundar , Julia Lawall Subject: [PATCH v2 linux-next] media: i2c: st-mipid02: replace of_node_put() with __free Date: Mon, 29 Apr 2024 22:07:36 +0530 Message-Id: <20240429163736.11544-1-prosunofficial@gmail.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Use the new cleanup magic to replace of_node_put() with __free(device_node) marking to auto release and to simplify the error paths. Suggested-by: Julia Lawall Signed-off-by: R Sundar --- Changes since v1 - - Added missed out __free() marking in mipid02_parse_tx_ep(). - In mipid02_parse_tx_ep(), In error case, return value is always -EINVAL. so sending the -EINVAL instead of ret variable value. Link to v1 - https://lore.kernel.org/all/20240427095643.11486-1-prosunofficial@gmail.com/#t drivers/media/i2c/st-mipid02.c | 37 +++++++++------------------------- 1 file changed, 9 insertions(+), 28 deletions(-) diff --git a/drivers/media/i2c/st-mipid02.c b/drivers/media/i2c/st-mipid02.c index f250640729ca..bd3cf94f8534 100644 --- a/drivers/media/i2c/st-mipid02.c +++ b/drivers/media/i2c/st-mipid02.c @@ -715,31 +715,28 @@ static int mipid02_parse_rx_ep(struct mipid02_dev *bridge) struct v4l2_fwnode_endpoint ep = { .bus_type = V4L2_MBUS_CSI2_DPHY }; struct i2c_client *client = bridge->i2c_client; struct v4l2_async_connection *asd; - struct device_node *ep_node; int ret; /* parse rx (endpoint 0) */ - ep_node = of_graph_get_endpoint_by_regs(bridge->i2c_client->dev.of_node, - 0, 0); + struct device_node *ep_node __free(device_node) = + of_graph_get_endpoint_by_regs(bridge->i2c_client->dev.of_node, 0, 0); if (!ep_node) { dev_err(&client->dev, "unable to find port0 ep"); - ret = -EINVAL; - goto error; + return -EINVAL; } ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep_node), &ep); if (ret) { dev_err(&client->dev, "Could not parse v4l2 endpoint %d\n", ret); - goto error_of_node_put; + return ret; } /* do some sanity checks */ if (ep.bus.mipi_csi2.num_data_lanes > 2) { dev_err(&client->dev, "max supported data lanes is 2 / got %d", ep.bus.mipi_csi2.num_data_lanes); - ret = -EINVAL; - goto error_of_node_put; + return -EINVAL; } /* register it for later use */ @@ -750,7 +747,6 @@ static int mipid02_parse_rx_ep(struct mipid02_dev *bridge) asd = v4l2_async_nf_add_fwnode_remote(&bridge->notifier, of_fwnode_handle(ep_node), struct v4l2_async_connection); - of_node_put(ep_node); if (IS_ERR(asd)) { dev_err(&client->dev, "fail to register asd to notifier %ld", @@ -764,46 +760,31 @@ static int mipid02_parse_rx_ep(struct mipid02_dev *bridge) v4l2_async_nf_cleanup(&bridge->notifier); return ret; - -error_of_node_put: - of_node_put(ep_node); -error: - - return ret; } static int mipid02_parse_tx_ep(struct mipid02_dev *bridge) { struct v4l2_fwnode_endpoint ep = { .bus_type = V4L2_MBUS_PARALLEL }; struct i2c_client *client = bridge->i2c_client; - struct device_node *ep_node; int ret; /* parse tx (endpoint 2) */ - ep_node = of_graph_get_endpoint_by_regs(bridge->i2c_client->dev.of_node, - 2, 0); + struct device_node *ep_node __free(device_node) = + of_graph_get_endpoint_by_regs(bridge->i2c_client->dev.of_node, 2, 0); if (!ep_node) { dev_err(&client->dev, "unable to find port1 ep"); - ret = -EINVAL; - goto error; + return -EINVAL; } ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep_node), &ep); if (ret) { dev_err(&client->dev, "Could not parse v4l2 endpoint\n"); - goto error_of_node_put; + return -EINVAL; } - of_node_put(ep_node); bridge->tx = ep; return 0; - -error_of_node_put: - of_node_put(ep_node); -error: - - return -EINVAL; } static int mipid02_probe(struct i2c_client *client) -- 2.34.1