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path: root/drivers/ata/pata_mpc52xx.c
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Diffstat (limited to 'drivers/ata/pata_mpc52xx.c')
-rw-r--r--drivers/ata/pata_mpc52xx.c44
1 files changed, 15 insertions, 29 deletions
diff --git a/drivers/ata/pata_mpc52xx.c b/drivers/ata/pata_mpc52xx.c
index 00748ae1a016..d2c102fd4330 100644
--- a/drivers/ata/pata_mpc52xx.c
+++ b/drivers/ata/pata_mpc52xx.c
@@ -687,11 +687,11 @@ mpc52xx_ata_probe(struct platform_device *op)
int ata_irq = 0;
struct mpc52xx_ata __iomem *ata_regs;
struct mpc52xx_ata_priv *priv = NULL;
- int rv, ret, task_irq = 0;
+ int rv, task_irq;
int mwdma_mask = 0, udma_mask = 0;
const __be32 *prop;
int proplen;
- struct bcom_task *dmatsk = NULL;
+ struct bcom_task *dmatsk;
/* Get ipb frequency */
ipb_freq = mpc5xxx_get_bus_frequency(op->dev.of_node);
@@ -717,8 +717,7 @@ mpc52xx_ata_probe(struct platform_device *op)
ata_regs = devm_ioremap(&op->dev, res_mem.start, sizeof(*ata_regs));
if (!ata_regs) {
dev_err(&op->dev, "error mapping device registers\n");
- rv = -ENOMEM;
- goto err;
+ return -ENOMEM;
}
/*
@@ -753,7 +752,7 @@ mpc52xx_ata_probe(struct platform_device *op)
if (!priv) {
dev_err(&op->dev, "error allocating private structure\n");
rv = -ENOMEM;
- goto err;
+ goto err1;
}
priv->ipb_period = 1000000000 / (ipb_freq / 1000);
@@ -776,15 +775,15 @@ mpc52xx_ata_probe(struct platform_device *op)
if (!dmatsk) {
dev_err(&op->dev, "bestcomm initialization failed\n");
rv = -ENOMEM;
- goto err;
+ goto err1;
}
task_irq = bcom_get_task_irq(dmatsk);
- ret = request_irq(task_irq, &mpc52xx_ata_task_irq, 0,
+ rv = devm_request_irq(&op->dev, task_irq, &mpc52xx_ata_task_irq, 0,
"ATA task", priv);
- if (ret) {
+ if (rv) {
dev_err(&op->dev, "error requesting DMA IRQ\n");
- goto err;
+ goto err2;
}
priv->dmatsk = dmatsk;
@@ -792,7 +791,7 @@ mpc52xx_ata_probe(struct platform_device *op)
rv = mpc52xx_ata_hw_init(priv);
if (rv) {
dev_err(&op->dev, "error initializing hardware\n");
- goto err;
+ goto err2;
}
/* Register ourselves to libata */
@@ -800,23 +799,16 @@ mpc52xx_ata_probe(struct platform_device *op)
mwdma_mask, udma_mask);
if (rv) {
dev_err(&op->dev, "error registering with ATA layer\n");
- goto err;
+ goto err2;
}
return 0;
- err:
- devm_release_mem_region(&op->dev, res_mem.start, sizeof(*ata_regs));
- if (ata_irq)
- irq_dispose_mapping(ata_irq);
- if (task_irq)
- irq_dispose_mapping(task_irq);
- if (dmatsk)
- bcom_ata_release(dmatsk);
- if (ata_regs)
- devm_iounmap(&op->dev, ata_regs);
- if (priv)
- devm_kfree(&op->dev, priv);
+ err2:
+ irq_dispose_mapping(task_irq);
+ bcom_ata_release(dmatsk);
+ err1:
+ irq_dispose_mapping(ata_irq);
return rv;
}
@@ -835,12 +827,6 @@ mpc52xx_ata_remove(struct platform_device *op)
bcom_ata_release(priv->dmatsk);
irq_dispose_mapping(priv->ata_irq);
- /* Clear up IO allocations */
- devm_iounmap(&op->dev, priv->ata_regs);
- devm_release_mem_region(&op->dev, priv->ata_regs_pa,
- sizeof(*priv->ata_regs));
- devm_kfree(&op->dev, priv);
-
return 0;
}