diff options
| author | Shradha Gupta <shradhagupta@linux.microsoft.com> | 2024-02-02 09:43:44 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-04-13 14:10:06 +0300 |
| commit | 956d8407bfa7e664a8a7bac0fd9907255006ec5b (patch) | |
| tree | ccfb803813d3355d854157360d62c63044ae4fd4 /drivers/gpu | |
| parent | 18451798f4a4e7418b9fad7e7dd313fe84b1f545 (diff) | |
| download | linux-956d8407bfa7e664a8a7bac0fd9907255006ec5b.tar.xz | |
drm: Check polling initialized before enabling in drm_helper_probe_single_connector_modes
commit 048a36d8a6085bbd8ab9e5794b713b92ac986450 upstream.
In function drm_helper_probe_single_connector_modes() when we enable
polling again, if it is already uninitialized, a warning is reported.
This patch fixes the warning message by checking if poll is initialized
before enabling it.
Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/oe-lkp/202401191128.db8423f1-oliver.sang@intel.com
Signed-off-by: Shradha Gupta <shradhagupta@linux.microsoft.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1706856224-9725-1-git-send-email-shradhagupta@linux.microsoft.com
Cc: Holger Hoffstätte <holger@applied-asynchrony.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/drm_probe_helper.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c index fce6465bf4fa..36433fa681f3 100644 --- a/drivers/gpu/drm/drm_probe_helper.c +++ b/drivers/gpu/drm/drm_probe_helper.c @@ -629,8 +629,12 @@ retry: 0); } - /* Re-enable polling in case the global poll config changed. */ - drm_kms_helper_poll_enable(dev); + /* + * Re-enable polling in case the global poll config changed but polling + * is still initialized. + */ + if (dev->mode_config.poll_enabled) + drm_kms_helper_poll_enable(dev); if (connector->status == connector_status_disconnected) { DRM_DEBUG_KMS("[CONNECTOR:%d:%s] disconnected\n", |