[PATCH 1/3] befs: check return of sb_min_blocksize

[Luis de Bethencourt]

Confirm sb_min_blocksize() succeeded before continuing.

Signed-off-by: Luis de Bethencourt <lui...@osg.samsung.com>
---
Hi,

This is the main fix I wanted to send. I noticed other file systems check
the return of sb_min_blocksize(), it can fail so it is worth checking before
continuing.

Thanks :)
Luis

 fs/befs/linuxvfs.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index c734f21..453bb68 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -756,6 +756,7 @@ befs_fill_super(struct super_block *sb, void *data, int 
silent)
        long ret = -EINVAL;
        const unsigned long sb_block = 0;
        const off_t x86_sb_off = 512;
+       int blocksize;
 
        save_mount_options(sb, data);
 
@@ -788,7 +789,11 @@ befs_fill_super(struct super_block *sb, void *data, int 
silent)
         * least 1k to get the second 512 bytes of the volume.
         * -WD 10-26-01
         */ 
-       sb_min_blocksize(sb, 1024);
+       blocksize = sb_min_blocksize(sb, 1024);
+       if (!blocksize) {
+               befs_error(sb, "unable to set blocksize");
+               goto unacquire_priv_sbp;
+       }
 
        if (!(bh = sb_bread(sb, sb_block))) {
                if (!silent)
-- 
2.5.1