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| author | Al Viro <viro@zeniv.linux.org.uk> | 2018-07-08 21:45:07 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2018-07-10 23:29:03 -0400 |
| commit | 6b4e8085c0004382b985a5c005c685073630e746 (patch) | |
| tree | 9b7cc4226ab495fd2716e328754294028b973fb3 | |
| parent | b10a4a9f7695335bd2bb19bffdda7fbefbc6581f (diff) | |
| download | linux-6b4e8085c0004382b985a5c005c685073630e746.tar.bz2 | |
make sure do_dentry_open() won't return positive as an error
An ->open() instances really, really should not be doing that. There's
a lot of places e.g. around atomic_open() that could be confused by that,
so let's catch that early.
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | fs/open.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/open.c b/fs/open.c index 76c56966e297..530da965e369 100644 --- a/fs/open.c +++ b/fs/open.c @@ -812,6 +812,8 @@ static int do_dentry_open(struct file *f, return 0; cleanup_all: + if (WARN_ON_ONCE(error > 0)) + error = -EINVAL; fops_put(f->f_op); if (f->f_mode & FMODE_WRITER) { put_write_access(inode); |