[PATCH v6 3/7] can: m_can: Return ERR_PTR on error in allocation
From: Markus Schneider-Pargmann <msp@baylibre.com>
Date: 2024-12-19 19:59:07
Also in:
linux-arm-kernel, linux-can, linux-devicetree, lkml
Subsystem:
can network drivers, mcan device driver, the rest · Maintainers:
Marc Kleine-Budde, Vincent Mailhol, Markus Schneider-Pargmann, Linus Torvalds
We have more detailed error values available, return them in the core driver and the calling drivers to return proper errors to callers. Reviewed-by: Vincent Mailhol <redacted> Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com> --- drivers/net/can/m_can/m_can.c | 6 +++--- drivers/net/can/m_can/m_can_pci.c | 4 ++-- drivers/net/can/m_can/m_can_platform.c | 4 ++-- drivers/net/can/m_can/tcan4x5x-core.c | 4 ++-- 4 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c
index 0dcdcde3449c7647e4bc9a92f918160a336f94c0..e69e9799710b3e4cb267324e8e9db40ca02328e2 100644
--- a/drivers/net/can/m_can/m_can.c
+++ b/drivers/net/can/m_can/m_can.c@@ -2356,7 +2356,7 @@ struct m_can_classdev *m_can_class_allocate_dev(struct device *dev, sizeof(mram_config_vals) / 4); if (ret) { dev_err(dev, "Could not get Message RAM configuration."); - goto out; + return ERR_PTR(ret); } if (dev->of_node && of_property_read_bool(dev->of_node, "wakeup-source"))
@@ -2371,7 +2371,7 @@ struct m_can_classdev *m_can_class_allocate_dev(struct device *dev, net_dev = alloc_candev(sizeof_priv, tx_fifo_size); if (!net_dev) { dev_err(dev, "Failed to allocate CAN device"); - goto out; + return ERR_PTR(-ENOMEM); } class_dev = netdev_priv(net_dev);
@@ -2380,7 +2380,7 @@ struct m_can_classdev *m_can_class_allocate_dev(struct device *dev, SET_NETDEV_DEV(net_dev, dev); m_can_of_parse_mram(class_dev, mram_config_vals); -out: + return class_dev; } EXPORT_SYMBOL_GPL(m_can_class_allocate_dev);
diff --git a/drivers/net/can/m_can/m_can_pci.c b/drivers/net/can/m_can/m_can_pci.c
index d72fe771dfc7aa768c728f817e67a87b49fd9974..05a01dfdbfbf18b74f796d2efc75e2be5cbb75ed 100644
--- a/drivers/net/can/m_can/m_can_pci.c
+++ b/drivers/net/can/m_can/m_can_pci.c@@ -111,8 +111,8 @@ static int m_can_pci_probe(struct pci_dev *pci, const struct pci_device_id *id) mcan_class = m_can_class_allocate_dev(&pci->dev, sizeof(struct m_can_pci_priv)); - if (!mcan_class) - return -ENOMEM; + if (IS_ERR(mcan_class)) + return PTR_ERR(mcan_class); priv = cdev_to_priv(mcan_class);
diff --git a/drivers/net/can/m_can/m_can_platform.c b/drivers/net/can/m_can/m_can_platform.c
index b832566efda042929486578fad1879c7ad4a0cff..40bd10f71f0e2fab847c40c5bd5f7d85d3d46712 100644
--- a/drivers/net/can/m_can/m_can_platform.c
+++ b/drivers/net/can/m_can/m_can_platform.c@@ -87,8 +87,8 @@ static int m_can_plat_probe(struct platform_device *pdev) mcan_class = m_can_class_allocate_dev(&pdev->dev, sizeof(struct m_can_plat_priv)); - if (!mcan_class) - return -ENOMEM; + if (IS_ERR(mcan_class)) + return PTR_ERR(mcan_class); priv = cdev_to_priv(mcan_class);
diff --git a/drivers/net/can/m_can/tcan4x5x-core.c b/drivers/net/can/m_can/tcan4x5x-core.c
index 2f73bf3abad889c222f15c39a3d43de1a1cf5fbb..4c40b444727585b30df33a897c398e35e7592fb2 100644
--- a/drivers/net/can/m_can/tcan4x5x-core.c
+++ b/drivers/net/can/m_can/tcan4x5x-core.c@@ -375,8 +375,8 @@ static int tcan4x5x_can_probe(struct spi_device *spi) mcan_class = m_can_class_allocate_dev(&spi->dev, sizeof(struct tcan4x5x_priv)); - if (!mcan_class) - return -ENOMEM; + if (IS_ERR(mcan_class)) + return PTR_ERR(mcan_class); ret = m_can_check_mram_cfg(mcan_class, TCAN4X5X_MRAM_SIZE); if (ret)
--
2.45.2