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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2021-03-23 16:19:59 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2021-04-12 15:13:51 +0530 |
| commit | 07503e6aefe4a6efd777062191944a14f03b3a18 (patch) | |
| tree | d85af19ad040aac2cf8189af35314d5ad867dc6f /drivers/dma/plx_dma.c | |
| parent | 917a3200b9f467a154999c7572af345f2470aaf4 (diff) | |
| download | lwn-07503e6aefe4a6efd777062191944a14f03b3a18.tar.gz lwn-07503e6aefe4a6efd777062191944a14f03b3a18.zip | |
dmaengine: plx_dma: add a missing put_device() on error path
Add a missing put_device(&pdev->dev) if the call to
dma_async_device_register(dma); fails.
Fixes: 905ca51e63be ("dmaengine: plx-dma: Introduce PLX DMA engine PCI driver skeleton")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Link: https://lore.kernel.org/r/YFnq/0IQzixtAbC1@mwanda
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/plx_dma.c')
| -rw-r--r-- | drivers/dma/plx_dma.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/drivers/dma/plx_dma.c b/drivers/dma/plx_dma.c index f387c5bbc170..166934544161 100644 --- a/drivers/dma/plx_dma.c +++ b/drivers/dma/plx_dma.c @@ -507,10 +507,8 @@ static int plx_dma_create(struct pci_dev *pdev) rc = request_irq(pci_irq_vector(pdev, 0), plx_dma_isr, 0, KBUILD_MODNAME, plxdev); - if (rc) { - kfree(plxdev); - return rc; - } + if (rc) + goto free_plx; spin_lock_init(&plxdev->ring_lock); tasklet_setup(&plxdev->desc_task, plx_dma_desc_task); @@ -540,14 +538,20 @@ static int plx_dma_create(struct pci_dev *pdev) rc = dma_async_device_register(dma); if (rc) { pci_err(pdev, "Failed to register dma device: %d\n", rc); - free_irq(pci_irq_vector(pdev, 0), plxdev); - kfree(plxdev); - return rc; + goto put_device; } pci_set_drvdata(pdev, plxdev); return 0; + +put_device: + put_device(&pdev->dev); + free_irq(pci_irq_vector(pdev, 0), plxdev); +free_plx: + kfree(plxdev); + + return rc; } static int plx_dma_probe(struct pci_dev *pdev, |