Commit dc6802a7 authored by Dan Carpenter's avatar Dan Carpenter Committed by Greg Kroah-Hartman

tty: handle NULL parameters in free_tty_struct()

We sometimes pass NULL pointers to free_tty_struct().  One example where
it can happen is in the error handling code in pty_common_install().
Signed-off-by: default avatarDan Carpenter <>
Signed-off-by: default avatarGreg Kroah-Hartman <>
parent 4ac5d705
......@@ -181,6 +181,8 @@ struct tty_struct *alloc_tty_struct(void)
void free_tty_struct(struct tty_struct *tty)
if (!tty)
if (tty->dev)
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