drivers: Introduce device lookup variants by name

Add a helper to match the device name for device lookup. Also
reuse this generic exported helper for the existing bus_find_device_by_name().
and add similar variants for driver/class.

Cc: Alessandro Zummo <[email protected]>
Cc: Alexander Aring <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Dan Murphy <[email protected]>
Cc: Harald Freudenberger <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Jacek Anaszewski <[email protected]>
Cc: Lee Jones <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: Maxime Coquelin <[email protected]>
Cc: Pavel Machek <[email protected]>
Cc: Peter Oberparleiter <[email protected]>
Cc: "Rafael J. Wysocki" <[email protected]>
Cc: Stefan Schmidt <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: "Rafael J. Wysocki" <[email protected]>
Signed-off-by: Suzuki K Poulose <[email protected]>
Reviewed-by: Heikki Krogerus <[email protected]>
Acked-by: Alexandre Belloni <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

1 files changed, 1 insertions, 10 deletions

diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index 72b7ddc43116..c93ef33b01d3 100644
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -663,21 +663,12 @@ void rtc_update_irq(struct rtc_device *rtc,
 }
 EXPORT_SYMBOL_GPL(rtc_update_irq);
 
-static int __rtc_match(struct device *dev, const void *data)
-{
-	const char *name = data;
-
-	if (strcmp(dev_name(dev), name) == 0)
-		return 1;
-	return 0;
-}
-
 struct rtc_device *rtc_class_open(const char *name)
 {
 	struct device *dev;
 	struct rtc_device *rtc = NULL;
 
-	dev = class_find_device(rtc_class, NULL, name, __rtc_match);
+	dev = class_find_device_by_name(rtc_class, name);
 	if (dev)
 		rtc = to_rtc_device(dev);