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path: root/drivers/mfd/twl6040-core.c
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Diffstat (limited to 'drivers/mfd/twl6040-core.c')
-rw-r--r--drivers/mfd/twl6040-core.c42
1 files changed, 21 insertions, 21 deletions
diff --git a/drivers/mfd/twl6040-core.c b/drivers/mfd/twl6040-core.c
index 471f4895fb9..f71bb147d11 100644
--- a/drivers/mfd/twl6040-core.c
+++ b/drivers/mfd/twl6040-core.c
@@ -459,6 +459,12 @@ static int __devinit twl6040_probe(struct platform_device *pdev)
return -EINVAL;
}
+ /* In order to operate correctly we need valid interrupt config */
+ if (!pdata->naudint_irq || !pdata->irq_base) {
+ dev_err(&pdev->dev, "Invalid IRQ configuration\n");
+ return -EINVAL;
+ }
+
twl6040 = kzalloc(sizeof(struct twl6040), GFP_KERNEL);
if (!twl6040)
return -ENOMEM;
@@ -491,20 +497,18 @@ static int __devinit twl6040_probe(struct platform_device *pdev)
if (twl6040->rev == TWL6040_REV_ES1_0)
twl6040->audpwron = -EINVAL;
- if (twl6040->irq) {
- /* codec interrupt */
- ret = twl6040_irq_init(twl6040);
- if (ret)
- goto gpio2_err;
-
- ret = twl6040_request_irq(twl6040, TWL6040_IRQ_READY,
- twl6040_naudint_handler, 0,
- "twl6040_irq_ready", twl6040);
- if (ret) {
- dev_err(twl6040->dev, "READY IRQ request failed: %d\n",
- ret);
- goto irq_err;
- }
+ /* codec interrupt */
+ ret = twl6040_irq_init(twl6040);
+ if (ret)
+ goto gpio2_err;
+
+ ret = twl6040_request_irq(twl6040, TWL6040_IRQ_READY,
+ twl6040_naudint_handler, 0,
+ "twl6040_irq_ready", twl6040);
+ if (ret) {
+ dev_err(twl6040->dev, "READY IRQ request failed: %d\n",
+ ret);
+ goto irq_err;
}
/* dual-access registers controlled by I2C only */
@@ -553,11 +557,9 @@ static int __devinit twl6040_probe(struct platform_device *pdev)
return 0;
mfd_err:
- if (twl6040->irq)
- twl6040_free_irq(twl6040, TWL6040_IRQ_READY, twl6040);
+ twl6040_free_irq(twl6040, TWL6040_IRQ_READY, twl6040);
irq_err:
- if (twl6040->irq)
- twl6040_irq_exit(twl6040);
+ twl6040_irq_exit(twl6040);
gpio2_err:
if (gpio_is_valid(twl6040->audpwron))
gpio_free(twl6040->audpwron);
@@ -579,9 +581,7 @@ static int __devexit twl6040_remove(struct platform_device *pdev)
gpio_free(twl6040->audpwron);
twl6040_free_irq(twl6040, TWL6040_IRQ_READY, twl6040);
-
- if (twl6040->irq)
- twl6040_irq_exit(twl6040);
+ twl6040_irq_exit(twl6040);
mfd_remove_devices(&pdev->dev);
platform_set_drvdata(pdev, NULL);