[PATCH V2 2/5] drivers/rtc/rtc-ds1307.c: Switch to managed irq allocation

From: Nishanth Menon
Date: Tue Jun 23 2015 - 12:17:21 EST


Since we are not doing anything fancy in remove function that requires
us to sequence IRQ free operation, we might as well switch over to devm_
equivalent of managed IRQ allocation and remove the explicit free_irq
since it'd be done automatically at remove.

Signed-off-by: Nishanth Menon <nm@xxxxxx>
---
drivers/rtc/rtc-ds1307.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index 8ea496e54a2e..0a98d8a52791 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -1156,9 +1156,10 @@ read_rtc:
}

if (want_irq) {
- err = request_threaded_irq(client->irq, NULL, irq_handler,
- IRQF_SHARED | IRQF_ONESHOT,
- ds1307->rtc->name, client);
+ err = devm_request_threaded_irq(&client->dev,
+ client->irq, NULL, irq_handler,
+ IRQF_SHARED | IRQF_ONESHOT,
+ ds1307->rtc->name, client);
if (err) {
client->irq = 0;
dev_err(&client->dev, "unable to request IRQ!\n");
@@ -1212,9 +1213,6 @@ static int ds1307_remove(struct i2c_client *client)
{
struct ds1307 *ds1307 = i2c_get_clientdata(client);

- if (test_and_clear_bit(HAS_ALARM, &ds1307->flags))
- free_irq(client->irq, client);
-
if (test_and_clear_bit(HAS_NVRAM, &ds1307->flags))
sysfs_remove_bin_file(&client->dev.kobj, ds1307->nvram);

--
1.7.9.5

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