[PATCH] ata: sata_dwc_460ex: fix error path

Vasiliy Kulikov
2010-09-12T18:57:16Z

Free all allocated resources on error path.

Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
---
I cannot compile this driver at all, so it is not tested.

drivers/ata/sata_dwc_460ex.c | 21 ++++++++++++++-------
1 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c
index 6cf57c5..ad0535f 100644
--- a/drivers/ata/sata_dwc_460ex.c
+++ b/drivers/ata/sata_dwc_460ex.c
@@ -727,11 +727,15 @@ static int dma_dwc_xfer_setup(struct scatterlist *sg, int num_elems,
static void dma_dwc_exit(struct sata_dwc_device *hsdev)
{
dev_dbg(host_pvt.dwc_dev, "%s:\n", __func__);
- if (host_pvt.sata_dma_regs)
+ if (host_pvt.sata_dma_regs) {
iounmap(host_pvt.sata_dma_regs);
+ host_pvt.sata_dma_regs = NULL;
+ }

- if (hsdev->irq_dma)
+ if (hsdev->irq_dma) {
free_irq(hsdev->irq_dma, hsdev);
+ hsdev->irq_dma = 0;
+ }
}

/*
@@ -1606,7 +1610,7 @@ static int sata_dwc_probe(struct platform_device *ofdev,
if (hsdev == NULL) {
dev_err(&ofdev->dev, "kmalloc failed for hsdev\n");
err = -ENOMEM;
- goto error_out;
+ goto error;
}
memset(hsdev, 0, sizeof(*hsdev));

@@ -1616,7 +1620,7 @@ static int sata_dwc_probe(struct platform_device *ofdev,
dev_err(&ofdev->dev, "ioremap failed for SATA register"
" address\n");
err = -ENODEV;
- goto error_out;
+ goto error_kmalloc;
}
hsdev->reg_base = base;
dev_dbg(&ofdev->dev, "ioremap done for SATA register address\n");
@@ -1629,7 +1633,7 @@ static int sata_dwc_probe(struct platform_device *ofdev,
if (!host) {
dev_err(&ofdev->dev, "ata_host_alloc_pinfo failed\n");
err = -ENOMEM;
- goto error_out;
+ goto error_iomap;
}

host->private_data = hsdev;
@@ -1697,8 +1701,11 @@ error_out:
/* Free SATA DMA resources */
dma_dwc_exit(hsdev);

- if (base)
- iounmap(base);
+error_iomap:
+ iounmap(base);
+error_kmalloc:
+ kfree(hsdev);
+error:
return err;
}

--
1.7.0.4