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 --- 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); -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/