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path: root/drivers/tty/tty_io.c
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Diffstat (limited to 'drivers/tty/tty_io.c')
-rw-r--r--drivers/tty/tty_io.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 407b0d87b7c1..7ae0c8934f42 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -2225,6 +2225,12 @@ static int __tty_fasync(int fd, struct file *filp, int on)
if (tty_paranoia_check(tty, file_inode(filp), "tty_fasync"))
goto out;
+ if (on) {
+ retval = file_f_owner_allocate(filp);
+ if (retval)
+ goto out;
+ }
+
retval = fasync_helper(fd, filp, on, &tty->fasync);
if (retval <= 0)
goto out;