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path: root/drivers/rtc/rtc-ds1511.c
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Diffstat (limited to 'drivers/rtc/rtc-ds1511.c')
-rw-r--r--drivers/rtc/rtc-ds1511.c21
1 files changed, 10 insertions, 11 deletions
diff --git a/drivers/rtc/rtc-ds1511.c b/drivers/rtc/rtc-ds1511.c
index 25caada78398..0b6b7730c716 100644
--- a/drivers/rtc/rtc-ds1511.c
+++ b/drivers/rtc/rtc-ds1511.c
@@ -326,9 +326,9 @@ ds1511_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
struct platform_device *pdev = to_platform_device(dev);
struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
- if (pdata->irq < 0) {
+ if (pdata->irq <= 0)
return -EINVAL;
- }
+
pdata->alrm_mday = alrm->time.tm_mday;
pdata->alrm_hour = alrm->time.tm_hour;
pdata->alrm_min = alrm->time.tm_min;
@@ -346,9 +346,9 @@ ds1511_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
struct platform_device *pdev = to_platform_device(dev);
struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
- if (pdata->irq < 0) {
+ if (pdata->irq <= 0)
return -EINVAL;
- }
+
alrm->time.tm_mday = pdata->alrm_mday < 0 ? 0 : pdata->alrm_mday;
alrm->time.tm_hour = pdata->alrm_hour < 0 ? 0 : pdata->alrm_hour;
alrm->time.tm_min = pdata->alrm_min < 0 ? 0 : pdata->alrm_min;
@@ -385,7 +385,7 @@ ds1511_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
struct platform_device *pdev = to_platform_device(dev);
struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
- if (pdata->irq < 0) {
+ if (pdata->irq <= 0) {
return -ENOIOCTLCMD; /* fall back into rtc-dev's emulation */
}
switch (cmd) {
@@ -503,7 +503,6 @@ ds1511_rtc_probe(struct platform_device *pdev)
if (!pdata) {
return -ENOMEM;
}
- pdata->irq = -1;
pdata->size = res->end - res->start + 1;
if (!request_mem_region(res->start, pdata->size, pdev->name)) {
ret = -EBUSY;
@@ -545,13 +544,13 @@ ds1511_rtc_probe(struct platform_device *pdev)
* if the platform has an interrupt in mind for this device,
* then by all means, set it
*/
- if (pdata->irq >= 0) {
+ if (pdata->irq > 0) {
rtc_read(RTC_CMD1);
if (request_irq(pdata->irq, ds1511_interrupt,
IRQF_DISABLED | IRQF_SHARED, pdev->name, pdev) < 0) {
dev_warn(&pdev->dev, "interrupt not available.\n");
- pdata->irq = -1;
+ pdata->irq = 0;
}
}
@@ -572,7 +571,7 @@ ds1511_rtc_probe(struct platform_device *pdev)
if (pdata->rtc) {
rtc_device_unregister(pdata->rtc);
}
- if (pdata->irq >= 0) {
+ if (pdata->irq > 0) {
free_irq(pdata->irq, pdev);
}
if (ds1511_base) {
@@ -595,7 +594,7 @@ ds1511_rtc_remove(struct platform_device *pdev)
sysfs_remove_bin_file(&pdev->dev.kobj, &ds1511_nvram_attr);
rtc_device_unregister(pdata->rtc);
pdata->rtc = NULL;
- if (pdata->irq >= 0) {
+ if (pdata->irq > 0) {
/*
* disable the alarm interrupt
*/
@@ -631,7 +630,7 @@ ds1511_rtc_init(void)
static void __exit
ds1511_rtc_exit(void)
{
- return platform_driver_unregister(&ds1511_rtc_driver);
+ platform_driver_unregister(&ds1511_rtc_driver);
}
module_init(ds1511_rtc_init);