diff mbox series

[v2,3/8] media: bdisp: use 'time_left' variable with wait_event_timeout()

Message ID 20240805215123.3528-4-wsa+renesas@sang-engineering.com
State Accepted
Commit 9b2bf29410e962fd657cc50c7baa198506f1fc11
Headers show
Series media: use 'time_left' instead of 'timeout' with wait_*() functions | expand

Commit Message

Wolfram Sang Aug. 5, 2024, 9:51 p.m. UTC 
There is a confusing pattern in the kernel to use a variable named
'timeout' to store the result of wait_event_timeout() causing
patterns like:

        timeout = wait_event_timeout(...)
        if (!timeout) return -ETIMEDOUT;

with all kinds of permutations. Use 'time_left' as a variable to make the
code self explaining.

Fix to the proper variable type 'long' while here.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
 drivers/media/platform/st/sti/bdisp/bdisp-v4l2.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/drivers/media/platform/st/sti/bdisp/bdisp-v4l2.c b/drivers/media/platform/st/sti/bdisp/bdisp-v4l2.c
index 1328b4eb6b9f..c7ee6e1a4451 100644
--- a/drivers/media/platform/st/sti/bdisp/bdisp-v4l2.c
+++ b/drivers/media/platform/st/sti/bdisp/bdisp-v4l2.c
@@ -1160,7 +1160,7 @@  static void bdisp_irq_timeout(struct work_struct *ptr)
 static int bdisp_m2m_suspend(struct bdisp_dev *bdisp)
 {
 	unsigned long flags;
-	int timeout;
+	long time_left;
 
 	spin_lock_irqsave(&bdisp->slock, flags);
 	if (!test_bit(ST_M2M_RUNNING, &bdisp->state)) {
@@ -1171,13 +1171,13 @@  static int bdisp_m2m_suspend(struct bdisp_dev *bdisp)
 	set_bit(ST_M2M_SUSPENDING, &bdisp->state);
 	spin_unlock_irqrestore(&bdisp->slock, flags);
 
-	timeout = wait_event_timeout(bdisp->irq_queue,
-				     test_bit(ST_M2M_SUSPENDED, &bdisp->state),
-				     BDISP_WORK_TIMEOUT);
+	time_left = wait_event_timeout(bdisp->irq_queue,
+				       test_bit(ST_M2M_SUSPENDED, &bdisp->state),
+				       BDISP_WORK_TIMEOUT);
 
 	clear_bit(ST_M2M_SUSPENDING, &bdisp->state);
 
-	if (!timeout) {
+	if (!time_left) {
 		dev_err(bdisp->dev, "%s IRQ timeout\n", __func__);
 		return -EAGAIN;
 	}