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authorSascha Hauer <s.hauer@pengutronix.de>2013-04-04 13:25:05 +0400
committerJeff Garzik <jgarzik@redhat.com>2013-04-12 03:37:46 +0400
commitff540d029af1a5744fbf7c9b837801e46f683556 (patch)
tree38277a6c8b9dc547960b49ff85b688c484d3cac1 /drivers/ata/pata_imx.c
parent50f5a3415c2fc494e2bd80fc9e80cc62d64cbc3c (diff)
downloadlinux-ff540d029af1a5744fbf7c9b837801e46f683556.tar.xz
pata_imx: cleanup error path
- rename free_priv label to 'err' since priv is allocated with devm_* and not freed here. - add missing 'goto err' in case ata_host_activate fails - add 'ret' variable to return correct error value instead of hardcoded -ENOMEM in error case. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/pata_imx.c')
-rw-r--r--drivers/ata/pata_imx.c20
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/ata/pata_imx.c b/drivers/ata/pata_imx.c
index af893dda8528..f243496c3745 100644
--- a/drivers/ata/pata_imx.c
+++ b/drivers/ata/pata_imx.c
@@ -98,6 +98,7 @@ static int pata_imx_probe(struct platform_device *pdev)
struct pata_imx_priv *priv;
int irq = 0;
struct resource *io_res;
+ int ret;
io_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (io_res == NULL)
@@ -121,8 +122,10 @@ static int pata_imx_probe(struct platform_device *pdev)
clk_prepare_enable(priv->clk);
host = ata_host_alloc(&pdev->dev, 1);
- if (!host)
- goto free_priv;
+ if (!host) {
+ ret = -ENOMEM;
+ goto err;
+ }
host->private_data = priv;
ap = host->ports[0];
@@ -135,7 +138,8 @@ static int pata_imx_probe(struct platform_device *pdev)
resource_size(io_res));
if (!priv->host_regs) {
dev_err(&pdev->dev, "failed to map IO/CTL base\n");
- goto free_priv;
+ ret = -EBUSY;
+ goto err;
}
ap->ioaddr.cmd_addr = priv->host_regs + PATA_IMX_DRIVE_DATA;
@@ -158,13 +162,17 @@ static int pata_imx_probe(struct platform_device *pdev)
priv->host_regs + PATA_IMX_ATA_INT_EN);
/* activate */
- return ata_host_activate(host, irq, ata_sff_interrupt, 0,
+ ret = ata_host_activate(host, irq, ata_sff_interrupt, 0,
&pata_imx_sht);
-free_priv:
+ if (ret)
+ goto err;
+
+ return 0;
+err:
clk_disable_unprepare(priv->clk);
- return -ENOMEM;
+ return ret;
}
static int pata_imx_remove(struct platform_device *pdev)