On Tue, May 07, 2024 at 11:02:01AM +0200, Wolfram Sang wrote:
> There is a confusing pattern in the kernel to use a variable named 'timeout' to
> store the result of wait_for_completion_timeout() causing patterns like:
>
> timeout = wait_for_completion_timeout(...)
> if (!timeout) return -ETIMEDOUT;
>
> with all kinds of permutations. Check the return value directly to drop
> 'timeout' which also fixes its wrong type.
>
> Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
Acked-by: Liviu Dudau <liviu.dudau@xxxxxxx>
I will change the subject line to s/comeda/komeda/ when merging it.
Best regards,
Liviu
> ---
> drivers/gpu/drm/arm/display/komeda/komeda_crtc.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
> index 2c661f28410e..9bec59cf9c06 100644
> --- a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
> +++ b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
> @@ -294,7 +294,6 @@ komeda_crtc_flush_and_wait_for_flip_done(struct komeda_crtc *kcrtc,
> struct komeda_dev *mdev = kcrtc->master->mdev;
> struct completion *flip_done;
> struct completion temp;
> - int timeout;
>
> /* if caller doesn't send a flip_done, use a private flip_done */
> if (input_flip_done) {
> @@ -308,8 +307,7 @@ komeda_crtc_flush_and_wait_for_flip_done(struct komeda_crtc *kcrtc,
> mdev->funcs->flush(mdev, kcrtc->master->id, 0);
>
> /* wait the flip take affect.*/
> - timeout = wait_for_completion_timeout(flip_done, HZ);
> - if (timeout == 0) {
> + if (wait_for_completion_timeout(flip_done, HZ) == 0) {
> DRM_ERROR("wait pipe%d flip done timeout\n", kcrtc->master->id);
> if (!input_flip_done) {
> unsigned long flags;
> --
> 2.43.0
>
--
====================
| I would like to |
| fix the world, |
| but they're not |
| giving me the |
\ source code! /
---------------
¯\_(ツ)_/¯
