This is a note to let you know that I've just added the patch titled dmaengine: idxd: Fix missing error code in idxd_cdev_open() to the 5.12-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: dmaengine-idxd-fix-missing-error-code-in-idxd_cdev_o.patch and it can be found in the queue-5.12 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 71546332846dcad43f334c0ba12e0c339c48575c Author: Jiapeng Chong <jiapeng.chong@xxxxxxxxxxxxxxxxx> Date: Wed Jun 2 18:07:26 2021 +0800 dmaengine: idxd: Fix missing error code in idxd_cdev_open() [ Upstream commit 99b18e88a1cf737ae924123d63b46d9a3d17b1af ] The error code is missing in this code scenario, add the error code '-EINVAL' to the return value 'rc'. Eliminate the follow smatch warning: drivers/dma/idxd/cdev.c:113 idxd_cdev_open() warn: missing error code 'rc'. Reported-by: Abaci Robot <abaci@xxxxxxxxxxxxxxxxx> Signed-off-by: Jiapeng Chong <jiapeng.chong@xxxxxxxxxxxxxxxxx> Acked-by: Dave Jiang <dave.jiang@xxxxxxxxx> Link: https://lore.kernel.org/r/1622628446-87909-1-git-send-email-jiapeng.chong@xxxxxxxxxxxxxxxxx Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/dma/idxd/cdev.c b/drivers/dma/idxd/cdev.c index 1d8a3876b745..5ba8e8bc609f 100644 --- a/drivers/dma/idxd/cdev.c +++ b/drivers/dma/idxd/cdev.c @@ -110,6 +110,7 @@ static int idxd_cdev_open(struct inode *inode, struct file *filp) pasid = iommu_sva_get_pasid(sva); if (pasid == IOMMU_PASID_INVALID) { iommu_sva_unbind_device(sva); + rc = -EINVAL; goto failed; }