Don't perform dentry+inode checks unless both are valid.
Signed-off-by: Erez Zadok <[email protected]>
---
fs/unionfs/debug.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/unionfs/debug.c b/fs/unionfs/debug.c
index 0066ccd..8464fbb 100644
--- a/fs/unionfs/debug.c
+++ b/fs/unionfs/debug.c
@@ -299,7 +299,7 @@ check_inode:
* be NULL. But, check that all three are NULL: lower dentry, mnt,
* and inode.
*/
- if (S_ISDIR(inode->i_mode))
+ if (dstart >= 0 && dend >= 0 && S_ISDIR(inode->i_mode))
for (bindex = dstart+1; bindex < dend; bindex++) {
lower_inode = unionfs_lower_inode_idx(inode, bindex);
lower_dentry = unionfs_lower_dentry_idx(dentry,
--
1.5.2.2
-
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