[PATCH][next] bcache: Set error return err to -ENOMEM on allocation failure

[Colin King]

From: Colin Ian King <colin.k...@canonical.com>

Currently when ns fails to be allocated the error return path returns
an uninitialized return code in variable 'err'. Fix this by setting
err to -ENOMEM.

Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: 688330711e9a ("bcache: initialize the nvm pages allocator")
Signed-off-by: Colin Ian King <colin.k...@canonical.com>
---
 drivers/md/bcache/nvm-pages.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/md/bcache/nvm-pages.c b/drivers/md/bcache/nvm-pages.c
index 08cd45e90481..2e124d546099 100644
--- a/drivers/md/bcache/nvm-pages.c
+++ b/drivers/md/bcache/nvm-pages.c
@@ -584,6 +584,7 @@ struct bch_nvm_namespace *bch_register_namespace(const char 
*dev_path)
                return ERR_PTR(PTR_ERR(bdev));
        }
 
+       err = -ENOMEM;
        ns = kzalloc(sizeof(struct bch_nvm_namespace), GFP_KERNEL);
        if (!ns)
                goto bdput;
-- 
2.30.2