diff options
| author | Alexandru Ardelean <alexandru.ardelean@analog.com> | 2020-11-20 09:56:24 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-12-09 19:58:22 +0100 |
| commit | 44dccc4a2bd10abfacd25b7d125fb5c3abbb263d (patch) | |
| tree | 2eb415ab4b1c8f6db0b66ad96cb8701c8c50f22e /drivers/uio | |
| parent | 4849e0eda387931fe251fe956cbfddeee852dacf (diff) | |
| download | linux-stable-44dccc4a2bd10abfacd25b7d125fb5c3abbb263d.tar.gz linux-stable-44dccc4a2bd10abfacd25b7d125fb5c3abbb263d.tar.bz2 linux-stable-44dccc4a2bd10abfacd25b7d125fb5c3abbb263d.zip | |
uio: uio_dmem_genirq: convert simple allocations to device-managed
This change converts the simple allocations in the driver to used
device-managed allocation functions.
This removes the error path entirely in the probe function, and reduces
some code in the remove function.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20201120075625.12272-1-alexandru.ardelean@analog.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/uio')
| -rw-r--r-- | drivers/uio/uio_dmem_genirq.c | 34 |
1 files changed, 8 insertions, 26 deletions
diff --git a/drivers/uio/uio_dmem_genirq.c b/drivers/uio/uio_dmem_genirq.c index ec7f66f4555a..72aa372d6ba6 100644 --- a/drivers/uio/uio_dmem_genirq.c +++ b/drivers/uio/uio_dmem_genirq.c @@ -154,11 +154,10 @@ static int uio_dmem_genirq_probe(struct platform_device *pdev) if (pdev->dev.of_node) { /* alloc uioinfo for one device */ - uioinfo = kzalloc(sizeof(*uioinfo), GFP_KERNEL); + uioinfo = devm_kzalloc(&pdev->dev, sizeof(*uioinfo), GFP_KERNEL); if (!uioinfo) { - ret = -ENOMEM; dev_err(&pdev->dev, "unable to kmalloc\n"); - goto bad2; + return -ENOMEM; } uioinfo->name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%pOFn", pdev->dev.of_node); @@ -167,20 +166,19 @@ static int uio_dmem_genirq_probe(struct platform_device *pdev) if (!uioinfo || !uioinfo->name || !uioinfo->version) { dev_err(&pdev->dev, "missing platform_data\n"); - goto bad0; + return -EINVAL; } if (uioinfo->handler || uioinfo->irqcontrol || uioinfo->irq_flags & IRQF_SHARED) { dev_err(&pdev->dev, "interrupt configuration error\n"); - goto bad0; + return -EINVAL; } - priv = kzalloc(sizeof(*priv), GFP_KERNEL); + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); if (!priv) { - ret = -ENOMEM; dev_err(&pdev->dev, "unable to kmalloc\n"); - goto bad0; + return -ENOMEM; } dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); @@ -197,7 +195,7 @@ static int uio_dmem_genirq_probe(struct platform_device *pdev) if (ret == -ENXIO && pdev->dev.of_node) ret = UIO_IRQ_NONE; else if (ret < 0) - goto bad1; + return ret; uioinfo->irq = ret; } @@ -286,19 +284,11 @@ static int uio_dmem_genirq_probe(struct platform_device *pdev) if (ret) { dev_err(&pdev->dev, "unable to register uio device\n"); pm_runtime_disable(&pdev->dev); - goto bad1; + return ret; } platform_set_drvdata(pdev, priv); return 0; - bad1: - kfree(priv); - bad0: - /* kfree uioinfo for OF */ - if (pdev->dev.of_node) - kfree(uioinfo); - bad2: - return ret; } static int uio_dmem_genirq_remove(struct platform_device *pdev) @@ -308,14 +298,6 @@ static int uio_dmem_genirq_remove(struct platform_device *pdev) uio_unregister_device(priv->uioinfo); pm_runtime_disable(&pdev->dev); - priv->uioinfo->handler = NULL; - priv->uioinfo->irqcontrol = NULL; - - /* kfree uioinfo for OF */ - if (pdev->dev.of_node) - kfree(priv->uioinfo); - - kfree(priv); return 0; } |