tty: use for_each_console() and WARN() on sysfs failures

This fixes the build warnings in the tty code, and uses the proper
function for iterating over the console devices.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 464d09d..dae6fc9 100644 (file)
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -3257,7 +3257,7 @@ static ssize_t show_cons_active(struct device *dev,
        ssize_t count = 0;
 
        acquire_console_sem();
-       for (c = console_drivers; c; c = c->next) {
+       for_each_console(c) {
                if (!c->device)
                        continue;
                if (!c->write)
@@ -3306,7 +3306,7 @@ int __init tty_init(void)
        if (IS_ERR(consdev))
                consdev = NULL;
        else
-               device_create_file(consdev, &dev_attr_active);
+               WARN_ON(device_create_file(consdev, &dev_attr_active) < 0);
 
 #ifdef CONFIG_VT
        vty_init(&console_fops);

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 4f6ae05..9550618 100644 (file)
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -2994,7 +2994,7 @@ int __init vty_init(const struct file_operations *console_fops)
        if (IS_ERR(tty0dev))
                tty0dev = NULL;
        else
-               device_create_file(tty0dev, &dev_attr_active);
+               WARN_ON(device_create_file(tty0dev, &dev_attr_active) < 0);
 
        vcs_init();