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drm: Check polling initialized before enabling in drm_helper_probe_single_connector_modes

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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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Shradha Gupta 2024-02-01 22:43:44 -08:00 committed by Greg Kroah-Hartman
parent 786c27982a
commit 2ac168c672
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/drm_probe_helper.c
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@ -498,7 +498,8 @@ retry:
}
/* Re-enable polling in case the global poll config changed. */
if (drm_kms_helper_poll != dev->mode_config.poll_running)
if (dev->mode_config.poll_enabled &&
(drm_kms_helper_poll != dev->mode_config.poll_running))
drm_kms_helper_poll_enable(dev);
dev->mode_config.poll_running = drm_kms_helper_poll;