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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.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index a67609b9f21b..4d9898c2b641 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -1216,7 +1216,10 @@ static void pty_line_name(struct tty_driver *driver, int index, char *p)
*/
static void tty_line_name(struct tty_driver *driver, int index, char *p)
{
- sprintf(p, "%s%d", driver->name, index + driver->name_base);
+ if (driver->flags & TTY_DRIVER_UNNUMBERED_NODE)
+ strcpy(p, driver->name);
+ else
+ sprintf(p, "%s%d", driver->name, index + driver->name_base);
}
/**
@@ -3076,7 +3079,7 @@ struct tty_driver *__tty_alloc_driver(unsigned int lines, struct module *owner,
struct tty_driver *driver;
int err;
- if (!lines)
+ if (!lines || (flags & TTY_DRIVER_UNNUMBERED_NODE && lines > 1))
return ERR_PTR(-EINVAL);
driver = kzalloc(sizeof(struct tty_driver), GFP_KERNEL);