Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1278041
| From | Chris Zhong <zyw@rock-chips.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v5 05/11] drm: bridge: allow some funcs to be optional |
| Date | 2015-11-26 09:00 +0100 |
| Message-ID | <qyZDd-1YS-25@gated-at.bofh.it> (permalink) |
| References | <qyZDc-1YS-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Check the validity of post_disable/pre_enable in bridge->funcs before call them. Signed-off-by: Chris Zhong <zyw@rock-chips.com> --- Changes in v5: None Changes in v4: None Changes in v3: None Changes in v2: None drivers/gpu/drm/drm_bridge.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c index 6b8f721..8f29330 100644 --- a/drivers/gpu/drm/drm_bridge.c +++ b/drivers/gpu/drm/drm_bridge.c @@ -223,7 +223,8 @@ void drm_bridge_post_disable(struct drm_bridge *bridge) if (!bridge) return; - bridge->funcs->post_disable(bridge); + if (bridge->funcs->post_disable) + bridge->funcs->post_disable(bridge); drm_bridge_post_disable(bridge->next); } @@ -273,7 +274,8 @@ void drm_bridge_pre_enable(struct drm_bridge *bridge) drm_bridge_pre_enable(bridge->next); - bridge->funcs->pre_enable(bridge); + if (bridge->funcs->pre_enable) + bridge->funcs->pre_enable(bridge); } EXPORT_SYMBOL(drm_bridge_pre_enable); -- 2.6.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Back to linux.kernel | Previous | Next | Find similar | Unroll thread
[PATCH v5 05/11] drm: bridge: allow some funcs to be optional Chris Zhong <zyw@rock-chips.com> - 2015-11-26 09:00 +0100
csiph-web