From: Markus Elfring <Markus.Elfring@web.de>
To: netdev@vger.kernel.org, "David S. Miller" <davem@davemloft.net>,
Madalin Bucur <madalin.bucur@nxp.com>
Cc: LKML <linux-kernel@vger.kernel.org>, kernel-janitors@vger.kernel.org
Subject: [PATCH 2/3] fsl/fman: Use common error handling code in mac_probe()
Date: Sat, 9 Nov 2019 10:03:15 +0100 [thread overview]
Message-ID: <38159f52-81a1-8ece-076f-da66180f4d5e@web.de> (raw)
In-Reply-To: <132e8369-c4da-249f-76b8-834e394dc6d5@web.de>
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 9 Nov 2019 09:13:01 +0100
Adjust jump targets so that exception handling code can be better reused
at the end of this function.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
drivers/net/ethernet/freescale/fman/mac.c | 42 ++++++++++++-----------
1 file changed, 22 insertions(+), 20 deletions(-)
diff --git a/drivers/net/ethernet/freescale/fman/mac.c b/drivers/net/ethernet/freescale/fman/mac.c
index e0680257532c..7fbd7cc24ede 100644
--- a/drivers/net/ethernet/freescale/fman/mac.c
+++ b/drivers/net/ethernet/freescale/fman/mac.c
@@ -659,16 +659,14 @@ static int mac_probe(struct platform_device *_of_dev)
of_dev = of_find_device_by_node(dev_node);
if (!of_dev) {
dev_err(dev, "of_find_device_by_node(%pOF) failed\n", dev_node);
- err = -EINVAL;
- goto _return_of_node_put;
+ goto _e_inval_put_node;
}
/* Get the FMan cell-index */
err = of_property_read_u32(dev_node, "cell-index", &val);
if (err) {
dev_err(dev, "failed to read cell-index for %pOF\n", dev_node);
- err = -EINVAL;
- goto _put_device;
+ goto _e_inval_put_device;
}
/* cell-index 0 => FMan id 1 */
fman_id = (u8)(val + 1);
@@ -717,8 +715,7 @@ static int mac_probe(struct platform_device *_of_dev)
err = of_property_read_u32(mac_node, "cell-index", &val);
if (err) {
dev_err(dev, "failed to read cell-index for %pOF\n", mac_node);
- err = -EINVAL;
- goto _put_parent_device;
+ goto _e_inval_put_parent_device;
}
priv->cell_index = (u8)val;
@@ -726,8 +723,7 @@ static int mac_probe(struct platform_device *_of_dev)
mac_addr = of_get_mac_address(mac_node);
if (IS_ERR(mac_addr)) {
dev_err(dev, "of_get_mac_address(%pOF) failed\n", mac_node);
- err = -EINVAL;
- goto _put_parent_device;
+ goto _e_inval_put_parent_device;
}
ether_addr_copy(mac_dev->addr, mac_addr);
@@ -743,8 +739,7 @@ static int mac_probe(struct platform_device *_of_dev)
if (nph != ARRAY_SIZE(mac_dev->port)) {
dev_err(dev, "Not supported number of fman-ports handles of mac node %pOF from device tree\n",
mac_node);
- err = -EINVAL;
- goto _put_parent_device;
+ goto _e_inval_put_parent_device;
}
for (i = 0; i < ARRAY_SIZE(mac_dev->port); i++) {
@@ -753,24 +748,21 @@ static int mac_probe(struct platform_device *_of_dev)
if (!dev_node) {
dev_err(dev, "of_parse_phandle(%pOF, fsl,fman-ports) failed\n",
mac_node);
- err = -EINVAL;
- goto _return_of_node_put;
+ goto _e_inval_put_node;
}
of_dev = of_find_device_by_node(dev_node);
if (!of_dev) {
dev_err(dev, "of_find_device_by_node(%pOF) failed\n",
dev_node);
- err = -EINVAL;
- goto _return_of_node_put;
+ goto _e_inval_put_node;
}
mac_dev->port[i] = fman_port_bind(&of_dev->dev);
if (!mac_dev->port[i]) {
dev_err(dev, "dev_get_drvdata(%pOF) failed\n",
dev_node);
- err = -EINVAL;
- goto _put_device;
+ goto _e_inval_put_device;
}
of_node_put(dev_node);
}
@@ -821,8 +813,7 @@ static int mac_probe(struct platform_device *_of_dev)
phy = of_phy_find_device(mac_dev->phy_node);
if (!phy) {
err = -EINVAL;
- of_node_put(mac_dev->phy_node);
- goto _return_of_get_parent;
+ goto _put_phy_node;
}
priv->fixed_link->link = phy->link;
@@ -837,8 +828,7 @@ static int mac_probe(struct platform_device *_of_dev)
err = mac_dev->init(mac_dev);
if (err < 0) {
dev_err(dev, "mac_dev->init() = %d\n", err);
- of_node_put(mac_dev->phy_node);
- goto _return_of_get_parent;
+ goto _put_phy_node;
}
/* pause frame autonegotiation enabled */
@@ -866,10 +856,22 @@ static int mac_probe(struct platform_device *_of_dev)
goto _return;
+_put_phy_node:
+ of_node_put(mac_dev->phy_node);
+ goto _return_of_get_parent;
+
+_e_inval_put_node:
+ err = -EINVAL;
+ goto _return_of_node_put;
+
+_e_inval_put_parent_device:
+ err = -EINVAL;
_put_parent_device:
put_device(&of_dev->dev);
goto _return_of_get_parent;
+_e_inval_put_device:
+ err = -EINVAL;
_put_device:
put_device(&of_dev->dev);
_return_of_node_put:
--
2.24.0
WARNING: multiple messages have this Message-ID (diff)
From: Markus Elfring <Markus.Elfring@web.de>
To: netdev@vger.kernel.org, "David S. Miller" <davem@davemloft.net>,
Madalin Bucur <madalin.bucur@nxp.com>
Cc: LKML <linux-kernel@vger.kernel.org>, kernel-janitors@vger.kernel.org
Subject: [PATCH 2/3] fsl/fman: Use common error handling code in mac_probe()
Date: Sat, 09 Nov 2019 09:03:15 +0000 [thread overview]
Message-ID: <38159f52-81a1-8ece-076f-da66180f4d5e@web.de> (raw)
In-Reply-To: <132e8369-c4da-249f-76b8-834e394dc6d5@web.de>
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 9 Nov 2019 09:13:01 +0100
Adjust jump targets so that exception handling code can be better reused
at the end of this function.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
drivers/net/ethernet/freescale/fman/mac.c | 42 ++++++++++++-----------
1 file changed, 22 insertions(+), 20 deletions(-)
diff --git a/drivers/net/ethernet/freescale/fman/mac.c b/drivers/net/ethernet/freescale/fman/mac.c
index e0680257532c..7fbd7cc24ede 100644
--- a/drivers/net/ethernet/freescale/fman/mac.c
+++ b/drivers/net/ethernet/freescale/fman/mac.c
@@ -659,16 +659,14 @@ static int mac_probe(struct platform_device *_of_dev)
of_dev = of_find_device_by_node(dev_node);
if (!of_dev) {
dev_err(dev, "of_find_device_by_node(%pOF) failed\n", dev_node);
- err = -EINVAL;
- goto _return_of_node_put;
+ goto _e_inval_put_node;
}
/* Get the FMan cell-index */
err = of_property_read_u32(dev_node, "cell-index", &val);
if (err) {
dev_err(dev, "failed to read cell-index for %pOF\n", dev_node);
- err = -EINVAL;
- goto _put_device;
+ goto _e_inval_put_device;
}
/* cell-index 0 => FMan id 1 */
fman_id = (u8)(val + 1);
@@ -717,8 +715,7 @@ static int mac_probe(struct platform_device *_of_dev)
err = of_property_read_u32(mac_node, "cell-index", &val);
if (err) {
dev_err(dev, "failed to read cell-index for %pOF\n", mac_node);
- err = -EINVAL;
- goto _put_parent_device;
+ goto _e_inval_put_parent_device;
}
priv->cell_index = (u8)val;
@@ -726,8 +723,7 @@ static int mac_probe(struct platform_device *_of_dev)
mac_addr = of_get_mac_address(mac_node);
if (IS_ERR(mac_addr)) {
dev_err(dev, "of_get_mac_address(%pOF) failed\n", mac_node);
- err = -EINVAL;
- goto _put_parent_device;
+ goto _e_inval_put_parent_device;
}
ether_addr_copy(mac_dev->addr, mac_addr);
@@ -743,8 +739,7 @@ static int mac_probe(struct platform_device *_of_dev)
if (nph != ARRAY_SIZE(mac_dev->port)) {
dev_err(dev, "Not supported number of fman-ports handles of mac node %pOF from device tree\n",
mac_node);
- err = -EINVAL;
- goto _put_parent_device;
+ goto _e_inval_put_parent_device;
}
for (i = 0; i < ARRAY_SIZE(mac_dev->port); i++) {
@@ -753,24 +748,21 @@ static int mac_probe(struct platform_device *_of_dev)
if (!dev_node) {
dev_err(dev, "of_parse_phandle(%pOF, fsl,fman-ports) failed\n",
mac_node);
- err = -EINVAL;
- goto _return_of_node_put;
+ goto _e_inval_put_node;
}
of_dev = of_find_device_by_node(dev_node);
if (!of_dev) {
dev_err(dev, "of_find_device_by_node(%pOF) failed\n",
dev_node);
- err = -EINVAL;
- goto _return_of_node_put;
+ goto _e_inval_put_node;
}
mac_dev->port[i] = fman_port_bind(&of_dev->dev);
if (!mac_dev->port[i]) {
dev_err(dev, "dev_get_drvdata(%pOF) failed\n",
dev_node);
- err = -EINVAL;
- goto _put_device;
+ goto _e_inval_put_device;
}
of_node_put(dev_node);
}
@@ -821,8 +813,7 @@ static int mac_probe(struct platform_device *_of_dev)
phy = of_phy_find_device(mac_dev->phy_node);
if (!phy) {
err = -EINVAL;
- of_node_put(mac_dev->phy_node);
- goto _return_of_get_parent;
+ goto _put_phy_node;
}
priv->fixed_link->link = phy->link;
@@ -837,8 +828,7 @@ static int mac_probe(struct platform_device *_of_dev)
err = mac_dev->init(mac_dev);
if (err < 0) {
dev_err(dev, "mac_dev->init() = %d\n", err);
- of_node_put(mac_dev->phy_node);
- goto _return_of_get_parent;
+ goto _put_phy_node;
}
/* pause frame autonegotiation enabled */
@@ -866,10 +856,22 @@ static int mac_probe(struct platform_device *_of_dev)
goto _return;
+_put_phy_node:
+ of_node_put(mac_dev->phy_node);
+ goto _return_of_get_parent;
+
+_e_inval_put_node:
+ err = -EINVAL;
+ goto _return_of_node_put;
+
+_e_inval_put_parent_device:
+ err = -EINVAL;
_put_parent_device:
put_device(&of_dev->dev);
goto _return_of_get_parent;
+_e_inval_put_device:
+ err = -EINVAL;
_put_device:
put_device(&of_dev->dev);
_return_of_node_put:
--
2.24.0
next prev parent reply other threads:[~2019-11-09 9:03 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-09 8:55 [PATCH 0/3] FMan MAC: Improve exception handling in mac_probe() Markus Elfring
2019-11-09 8:55 ` Markus Elfring
2019-11-09 9:00 ` [PATCH 1/3] fsl/fman: Add missing put_device() calls " Markus Elfring
2019-11-09 9:00 ` Markus Elfring
2019-11-10 9:15 ` Markus Elfring
2019-11-10 9:15 ` Markus Elfring
2019-11-09 9:03 ` Markus Elfring [this message]
2019-11-09 9:03 ` [PATCH 2/3] fsl/fman: Use common error handling code " Markus Elfring
2019-11-09 9:03 ` Markus Elfring
2019-11-09 9:03 ` Markus Elfring
2019-11-09 9:06 ` [PATCH 3/3] fsl/fman: Return directly after a failed devm_kzalloc() " Markus Elfring
2019-11-09 9:06 ` Markus Elfring
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