[PATCH] fs:efs:fix return value

[Heloise]

When the function sb_bread() fails, the return value should
be -EIO, fix it.

Signed-off-by: Heloise <o...@iscas.ac.cn>
---
 fs/efs/super.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/efs/super.c b/fs/efs/super.c
index cb68dac..368f7dd 100644
--- a/fs/efs/super.c
+++ b/fs/efs/super.c
@@ -275,7 +275,7 @@ static int efs_fill_super(struct super_block *s, void *d, 
int silent)
 
        if (!bh) {
                pr_err("cannot read volume header\n");
-               return -EINVAL;
+               return -EIO;
        }
 
        /*
@@ -293,7 +293,7 @@ static int efs_fill_super(struct super_block *s, void *d, 
int silent)
        bh = sb_bread(s, sb->fs_start + EFS_SUPER);
        if (!bh) {
                pr_err("cannot read superblock\n");
-               return -EINVAL;
+               return -EIO;
        }
                
        if (efs_validate_super(sb, (struct efs_super *) bh->b_data)) {
-- 
2.1.0