This is a note to let you know that I've just added the patch titled umem: fix error return code in mm_pci_probe() to the 5.11-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: umem-fix-error-return-code-in-mm_pci_probe.patch and it can be found in the queue-5.11 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit a519bda2f9d4ba5fe636a56b11f3eddf57e30c09 Author: Wei Yongjun <weiyongjun1@xxxxxxxxxx> Date: Mon Mar 8 12:35:01 2021 +0000 umem: fix error return code in mm_pci_probe() [ Upstream commit eeb05595d22c19c8f814ff893dcf88ec277a2365 ] Fix to return negative error code -ENOMEM from the blk_alloc_queue() and dma_alloc_coherent() error handling cases instead of 0, as done elsewhere in this function. Reported-by: Hulk Robot <hulkci@xxxxxxxxxx> Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx> Link: https://lore.kernel.org/r/20210308123501.2573816-1-weiyongjun1@xxxxxxxxxx Signed-off-by: Jens Axboe <axboe@xxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/block/umem.c b/drivers/block/umem.c index 2b95d7b33b91..5eb44e4a91ee 100644 --- a/drivers/block/umem.c +++ b/drivers/block/umem.c @@ -877,6 +877,7 @@ static int mm_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) if (card->mm_pages[0].desc == NULL || card->mm_pages[1].desc == NULL) { dev_printk(KERN_ERR, &card->dev->dev, "alloc failed\n"); + ret = -ENOMEM; goto failed_alloc; } reset_page(&card->mm_pages[0]); @@ -888,8 +889,10 @@ static int mm_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) spin_lock_init(&card->lock); card->queue = blk_alloc_queue(NUMA_NO_NODE); - if (!card->queue) + if (!card->queue) { + ret = -ENOMEM; goto failed_alloc; + } tasklet_init(&card->tasklet, process_page, (unsigned long)card);