In case of somebody opens a file with dentry_open(dentry, NULL, ...) we don't
want to stumble on the NULL pointer mnt in struct file.
Signed-off-by: Jan Blunck <[EMAIL PROTECTED]>
---
fs/namespace.c | 3 +++
1 file changed, 3 insertions(+)
Index: b/fs/namespace.c
===================================================================
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -253,6 +253,9 @@ void mnt_drop_write(struct vfsmount *mnt
int must_check_underflow = 0;
struct mnt_writer *cpu_writer;
+ if (!mnt)
+ return;
+
cpu_writer = &get_cpu_var(mnt_writers);
spin_lock(&cpu_writer->lock);
--
-
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