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author | Peter Hurley <peter@hurleysoftware.com> | 2015-11-08 18:01:12 (GMT) |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-12-14 03:59:48 (GMT) |
commit | 0a083eddae33b6e20234d05a9cf54f87b0095511 (patch) | |
tree | eb2487f1492031b4947f3e38f7a768524911d0d6 /include | |
parent | 25080652a2d4a6d27a51fc1412e258f467174615 (diff) | |
download | linux-0a083eddae33b6e20234d05a9cf54f87b0095511.tar.xz |
tty: core: Add helper fn to deref tty driver name
Similar to tty_name(), add tty_driver_name() helper to safely
dereference tty->driver->name (otherwise return empty string).
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/tty.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/tty.h b/include/linux/tty.h index 0532465..a9c1af9 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -420,6 +420,7 @@ static inline struct tty_struct *tty_kref_get(struct tty_struct *tty) } extern const char *tty_name(const struct tty_struct *tty); +extern const char *tty_driver_name(const struct tty_struct *tty); extern void tty_wait_until_sent(struct tty_struct *tty, long timeout); extern int __tty_check_change(struct tty_struct *tty, int sig); extern int tty_check_change(struct tty_struct *tty); |