[PATCH] media: pwm-ir-tx: Correct timer calculation

[Dave Stevenson]

Commit 44d7fb8acdf8 ("media: pwm-ir-tx: Avoid direct access to
hrtimer clockbase") converted a loop conditional from
               now = timer->base->get_time();
       } while (hrtimer_get_expires_tv64(timer) < now);
to
       while (hrtimer_expires_remaining(timer) > 0);

hrtimer_expires_remaining returns (expires - now), so the
change has inverted the condition.

Convert back to follow the original pattern, but using the
proper API call.

Fixes: 44d7fb8acdf8 ("media: pwm-ir-tx: Avoid direct access to hrtimer clockbase")
Signed-off-by: Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx>
---
Reported via https://github.com/raspberrypi/linux/issues/7678
---
 drivers/media/rc/pwm-ir-tx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/rc/pwm-ir-tx.c b/drivers/media/rc/pwm-ir-tx.c
index 047472dc9244..bffdda489950 100644
--- a/drivers/media/rc/pwm-ir-tx.c
+++ b/drivers/media/rc/pwm-ir-tx.c
@@ -138,7 +138,7 @@ static enum hrtimer_restart pwm_ir_timer(struct hrtimer *timer)
 		hrtimer_add_expires_ns(timer, ns);
 
 		pwm_ir->txbuf_index++;
-	} while (hrtimer_expires_remaining(timer) > 0);
+	} while (hrtimer_get_expires(timer) < hrtimer_cb_get_time(timer));
 
 	return HRTIMER_RESTART;
 }

---
base-commit: d7e7bca7169873b46e857c025c10f3336c1258d8
change-id: 20261013-media-rc-pwm-ir-tx-971c2ae8cf53

Best regards,
-- 
Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx>