pwm: core: use device_match_name() instead of strcmp(dev_name(...

Use the dedicated helper for comparing device names against strings.

Note, the current code has a check for the dev_name() against NULL.
With the current implementations of the device_add() and dev_set_name()
it most likely a theoretical assumption that that might happen, while
I don't see how. Hence, that check has simply been removed.

Signed-off-by: Andy Shevchenko <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Uwe Kleine-König <[email protected]>

Author: andy-shev

drivers/pwm/core.c

@@ -852,9 +852,7 @@ static struct pwm_chip *pwmchip_find_by_name(const char *name)
 	guard(mutex)(&pwm_lock);
 
 	idr_for_each_entry_ul(&pwm_chips, chip, tmp, id) {
-		const char *chip_name = dev_name(pwmchip_parent(chip));
-
-		if (chip_name && strcmp(chip_name, name) == 0)
+		if (device_match_name(pwmchip_parent(chip), name))
 			return chip;
 	}