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| author | Ricardo Ribalda <ribalda@chromium.org> | 2024-04-29 15:04:42 +0000 |
|---|---|---|
| committer | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2024-05-04 10:19:59 +0200 |
| commit | 64627daf0c5f7838111f52bbbd1a597cb5d6871a (patch) | |
| tree | 7342cdde07e95026ebfdd659bdc978a4e28536ec /drivers/media/usb | |
| parent | 2c7f7a3bfe2ab41d070913c2acde269e1ffeb3e2 (diff) | |
| download | linux-stable-64627daf0c5f7838111f52bbbd1a597cb5d6871a.tar.gz linux-stable-64627daf0c5f7838111f52bbbd1a597cb5d6871a.tar.bz2 linux-stable-64627daf0c5f7838111f52bbbd1a597cb5d6871a.zip | |
media: uvcvideo: Refactor iterators
Avoid using the iterators after the list_for_each() constructs.
This patch should be a NOP, but makes cocci, happier:
drivers/media/usb/uvc/uvc_ctrl.c:1861:44-50: ERROR: invalid reference to the index variable of the iterator on line 1850
drivers/media/usb/uvc/uvc_ctrl.c:2195:17-23: ERROR: invalid reference to the index variable of the iterator on line 2179
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Diffstat (limited to 'drivers/media/usb')
| -rw-r--r-- | drivers/media/usb/uvc/uvc_ctrl.c | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c index f8ae14b8b426..4b685f883e4d 100644 --- a/drivers/media/usb/uvc/uvc_ctrl.c +++ b/drivers/media/usb/uvc/uvc_ctrl.c @@ -1850,16 +1850,18 @@ int __uvc_ctrl_commit(struct uvc_fh *handle, int rollback, list_for_each_entry(entity, &chain->entities, chain) { ret = uvc_ctrl_commit_entity(chain->dev, entity, rollback, &err_ctrl); - if (ret < 0) + if (ret < 0) { + if (ctrls) + ctrls->error_idx = + uvc_ctrl_find_ctrl_idx(entity, ctrls, + err_ctrl); goto done; + } } if (!rollback) uvc_ctrl_send_events(handle, ctrls->controls, ctrls->count); done: - if (ret < 0 && ctrls) - ctrls->error_idx = uvc_ctrl_find_ctrl_idx(entity, ctrls, - err_ctrl); mutex_unlock(&chain->ctrl_mutex); return ret; } @@ -2165,7 +2167,7 @@ static int uvc_ctrl_init_xu_ctrl(struct uvc_device *dev, int uvc_xu_ctrl_query(struct uvc_video_chain *chain, struct uvc_xu_control_query *xqry) { - struct uvc_entity *entity; + struct uvc_entity *entity, *iter; struct uvc_control *ctrl; unsigned int i; bool found; @@ -2175,16 +2177,16 @@ int uvc_xu_ctrl_query(struct uvc_video_chain *chain, int ret; /* Find the extension unit. */ - found = false; - list_for_each_entry(entity, &chain->entities, chain) { - if (UVC_ENTITY_TYPE(entity) == UVC_VC_EXTENSION_UNIT && - entity->id == xqry->unit) { - found = true; + entity = NULL; + list_for_each_entry(iter, &chain->entities, chain) { + if (UVC_ENTITY_TYPE(iter) == UVC_VC_EXTENSION_UNIT && + iter->id == xqry->unit) { + entity = iter; break; } } - if (!found) { + if (!entity) { uvc_dbg(chain->dev, CONTROL, "Extension unit %u not found\n", xqry->unit); return -ENOENT; |