This is a note to let you know that I've just added the patch titled soundwire: intel: fix NULL/ERR_PTR confusion to the 5.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: soundwire-intel-fix-null-err_ptr-confusion.patch and it can be found in the queue-5.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit f27486227d7cc1d16b3677158de06c409a1a4bd5 Author: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx> Date: Fri Sep 4 04:47:37 2020 +0800 soundwire: intel: fix NULL/ERR_PTR confusion [ Upstream commit 06dcb4e443643db93b286f861133785ca46f5a19 ] snd_soc_dai_get_sdw_stream() can only return the pointer to stream or an ERR_PTR value, NULL is not a possible value. Fixes: 09553140c8d7b ('soundwire: intel: implement get_sdw_stream() operations') Reported-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx> Reviewed-by: Rander Wang <rander.wang@xxxxxxxxxxxxxxx> Signed-off-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20200903204739.31206-3-yung-chuan.liao@xxxxxxxxxxxxxxx Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c index a283670659a92..10ff166977f8f 100644 --- a/drivers/soundwire/intel.c +++ b/drivers/soundwire/intel.c @@ -1011,7 +1011,7 @@ static void *intel_get_sdw_stream(struct snd_soc_dai *dai, dma = dai->capture_dma_data; if (!dma) - return NULL; + return ERR_PTR(-EINVAL); return dma->stream; }