5.15-stable review patch. If anyone has any objections, please let me know.
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From: Shradha Gupta shradhagupta@linux.microsoft.com
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-ema... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/drm_probe_helper.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/drm_probe_helper.c +++ b/drivers/gpu/drm/drm_probe_helper.c @@ -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;