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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-08 04:15:15 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-08 04:15:15 +0000 |
| commit | 68c1b0995e963349e50f8a8b00ebc140908f7882 (patch) | |
| tree | ae3788542761985ee15e3d1ca439706040d1eb0c /drivers/tty/tty_io.c | |
| parent | Releasing progress-linux version 4.19.269-1progress5u1. (diff) | |
| download | linux-68c1b0995e963349e50f8a8b00ebc140908f7882.tar.xz linux-68c1b0995e963349e50f8a8b00ebc140908f7882.zip | |
Merging upstream version 4.19.282.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/tty/tty_io.c')
| -rw-r--r-- | drivers/tty/tty_io.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index b6f42d0ee..d3e6b6615 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -1155,14 +1155,16 @@ static struct tty_struct *tty_driver_lookup_tty(struct tty_driver *driver, { struct tty_struct *tty; - if (driver->ops->lookup) + if (driver->ops->lookup) { if (!file) tty = ERR_PTR(-EIO); else tty = driver->ops->lookup(driver, file, idx); - else + } else { + if (idx >= driver->num) + return ERR_PTR(-EINVAL); tty = driver->ttys[idx]; - + } if (!IS_ERR(tty)) tty_kref_get(tty); return tty; |