[PATCH] block: fix error return code in mm_pci_probe()

[Wang Hai]

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: Hulk Robot <hul...@huawei.com>
Signed-off-by: Wang Hai <wangha...@huawei.com>
---
 drivers/block/umem.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

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);
 
-- 
2.17.1