ufs: Fix mount check in ufs_fill_super()

The current code skips the check to verify whether the filesystem was
previously cleanly unmounted, if (flags & UFS_ST_MASK) == UFS_ST_44BSD or
UFS_ST_OLD.  This looks like an inadvertent bug that slipped in due to
parantheses in the compound conditional to me, especially given that
ufs_get_fs_state() handles the UFS_ST_44BSD case perfectly well.  So, let's
fix the compound condition appropriately.

Signed-off-by: Satyam Sharma <satyam@infradead.org>
Cc: Evgeniy Dushistov <dushistov@mail.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 8 insertions, 7 deletions

diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 4d72933661b7..584cf12cc40f 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -933,19 +933,20 @@ magic_found:
                 goto again;
         }
 
-        sbi->s_flags = flags;/*after that line some functions use s_flags*/
+        /* Set sbi->s_flags here, used by ufs_get_fs_state() below */
+        sbi->s_flags = flags;
         ufs_print_super_stuff(sb, usb1, usb2, usb3);
 
         /*
          * Check, if file system was correctly unmounted.
          * If not, make it read only.
          */
-        if (((flags & UFS_ST_MASK) == UFS_ST_44BSD) ||
-          ((flags & UFS_ST_MASK) == UFS_ST_OLD) ||
-          (((flags & UFS_ST_MASK) == UFS_ST_SUN || 
-            (flags & UFS_ST_MASK) == UFS_ST_SUNOS ||
-          (flags & UFS_ST_MASK) == UFS_ST_SUNx86) && 
-          (ufs_get_fs_state(sb, usb1, usb3) == (UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time))))) {
+        if ((((flags & UFS_ST_MASK) == UFS_ST_44BSD)    ||
+             ((flags & UFS_ST_MASK) == UFS_ST_OLD)      ||
+             ((flags & UFS_ST_MASK) == UFS_ST_SUN)      ||
+             ((flags & UFS_ST_MASK) == UFS_ST_SUNOS)    ||
+             ((flags & UFS_ST_MASK) == UFS_ST_SUNx86))  &&
+            (ufs_get_fs_state(sb, usb1, usb3) == (UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time)))) {
                 switch(usb1->fs_clean) {
                 case UFS_FSCLEAN:
                         UFSD("fs is clean\n");