Not really harmful not to, but also not harm in grabbing the lock. And
this shuts up a new WARNING I introduced in commit ddde3c18b700 ("vt:
More locking checks").
Reported-by: Jens Remus <jre...@linux.ibm.com>
Cc: linux-ker...@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-fb...@vger.kernel.org
Cc: linux-s...@vger.kernel.org
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Cc: Nicolas Pitre <nicolas.pi...@linaro.org>
Cc: Martin Hostettler <textsh...@uchuujin.de>
Cc: Adam Borowski <kilob...@angband.pl>
Cc: Mikulas Patocka <mpato...@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vet...@intel.com>
Cc: Daniel Vetter <daniel.vet...@ffwll.ch>
Cc: Sam Ravnborg <s...@ravnborg.org>
---
drivers/tty/vt/vt.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index ec92f36ab5c4..34aa39d1aed9 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -3771,7 +3771,11 @@ static ssize_t show_bind(struct device *dev, struct
device_attribute *attr,
char *buf)
{
struct con_driver *con = dev_get_drvdata(dev);
- int bind = con_is_bound(con->con);
+ int bind;
+
+ console_lock();
+ bind = con_is_bound(con->con);
+ console_unlock();
return snprintf(buf, PAGE_SIZE, "%i\n", bind);
}
--
2.20.1
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