From: Sonic Zhang <sonic.zhang@xxxxxxxxxx>
No need to free managed resources any more.
Signed-off-by: Sonic Zhang <sonic.zhang@xxxxxxxxxx>
---
v2-changes:
- Remove resource checking. devm_ioremap_resource will do it.
- Remove cast of the return value.
- Remove free_irq from the module remove function.
---
drivers/i2c/busses/i2c-bfin-twi.c | 44 +++++++++++----------------------------
1 file changed, 12 insertions(+), 32 deletions(-)
diff --git a/drivers/i2c/busses/i2c-bfin-twi.c b/drivers/i2c/busses/i2c-bfin-twi.c
index e6d5162..9ef1e25 100644
--- a/drivers/i2c/busses/i2c-bfin-twi.c
+++ b/drivers/i2c/busses/i2c-bfin-twi.c
@@ -620,35 +620,27 @@ static int i2c_bfin_twi_probe(struct platform_device *pdev)
int rc;
unsigned int clkhilow;
- iface = kzalloc(sizeof(struct bfin_twi_iface), GFP_KERNEL);
+ iface = devm_kzalloc(&pdev->dev, sizeof(struct bfin_twi_iface),
+ GFP_KERNEL);
if (!iface) {
dev_err(&pdev->dev, "Cannot allocate memory\n");
- rc = -ENOMEM;
- goto out_error_nomem;
+ return -ENOMEM;
}
spin_lock_init(&(iface->lock));
/* Find and map our resources */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (res == NULL) {
- dev_err(&pdev->dev, "Cannot get IORESOURCE_MEM\n");
- rc = -ENOENT;
- goto out_error_get_res;
- }
-
- iface->regs_base = ioremap(res->start, resource_size(res));
- if (iface->regs_base == NULL) {
+ iface->regs_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR((void *)iface->regs_base)) {
dev_err(&pdev->dev, "Cannot map IO\n");
- rc = -ENXIO;
- goto out_error_ioremap;
+ return PTR_ERR(iface->regs_base);
}
iface->irq = platform_get_irq(pdev, 0);
if (iface->irq < 0) {
dev_err(&pdev->dev, "No IRQ specified\n");
- rc = -ENOENT;
- goto out_error_no_irq;
+ return -ENOENT;
}
p_adap = &iface->adap;
@@ -666,15 +658,15 @@ static int i2c_bfin_twi_probe(struct platform_device *pdev)
"i2c-bfin-twi");
if (rc) {
dev_err(&pdev->dev, "Can't setup pin mux!\n");
- goto out_error_pin_mux;
+ return -EBUSY;
}
- rc = request_irq(iface->irq, bfin_twi_interrupt_entry,
+ rc = devm_request_irq(&pdev->dev, iface->irq, bfin_twi_interrupt_entry,
0, pdev->name, iface);
if (rc) {
dev_err(&pdev->dev, "Can't get IRQ %d !\n", iface->irq);
rc = -ENODEV;
- goto out_error_req_irq;
+ goto out_error;
}
/* Set TWI internal clock as 10MHz */
@@ -695,7 +687,7 @@ static int i2c_bfin_twi_probe(struct platform_device *pdev)
rc = i2c_add_numbered_adapter(p_adap);
if (rc < 0) {
dev_err(&pdev->dev, "Can't add i2c adapter!\n");
- goto out_error_add_adapter;
+ goto out_error;
}
platform_set_drvdata(pdev, iface);
@@ -705,17 +697,8 @@ static int i2c_bfin_twi_probe(struct platform_device *pdev)
return 0;
-out_error_add_adapter:
- free_irq(iface->irq, iface);
-out_error_req_irq:
-out_error_no_irq:
+out_error:
peripheral_free_list(dev_get_platdata(&pdev->dev));
-out_error_pin_mux:
- iounmap(iface->regs_base);
-out_error_ioremap:
-out_error_get_res:
- kfree(iface);
-out_error_nomem:
return rc;
}
@@ -724,10 +707,7 @@ static int i2c_bfin_twi_remove(struct platform_device *pdev)
struct bfin_twi_iface *iface = platform_get_drvdata(pdev);
i2c_del_adapter(&(iface->adap));
- free_irq(iface->irq, iface);
peripheral_free_list(dev_get_platdata(&pdev->dev));
- iounmap(iface->regs_base);
- kfree(iface);
return 0;
}
--
1.8.2.3
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