[PATCH] dax: fix dax_core_init error return code

[jianyungao89]

From: Jianyun Gao <jianyunga...@gmail.com>

dax_core_init() mistakenly returns 0 on error paths. Change the
error return to use rc so the actual error code is propagated
to the caller.

Fixes: 9567da0b408a ("device-dax: Introduce bus + driver model")
Signed-off-by: Jianyun Gao <jianyunga...@gmail.com>
---
 drivers/dax/super.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/dax/super.c b/drivers/dax/super.c
index 45f84b0eb909..0f35f65363ee 100644
--- a/drivers/dax/super.c
+++ b/drivers/dax/super.c
@@ -723,7 +723,7 @@ static int __init dax_core_init(void)
 
        rc = dax_fs_init();
        if (rc)
-               return rc;
+               goto err_fs;
 
        rc = alloc_chrdev_region(&dax_devt, 0, MINORMASK+1, "dax");
        if (rc)
@@ -738,7 +738,8 @@ static int __init dax_core_init(void)
        unregister_chrdev_region(dax_devt, MINORMASK+1);
 err_chrdev:
        dax_fs_exit();
-       return 0;
+err_fs:
+       return rc;
 }
 
 static void __exit dax_core_exit(void)
-- 
2.34.1