Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.4 63/86] tty: vt, return error when con_startup fails | Date | Mon, 30 May 2016 13:49:52 -0700 |
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4.4-stable review patch. If anyone has any objections, please let me know.
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From: Jiri Slaby <jslaby@suse.cz>
commit 6798df4c5fe0a7e6d2065cf79649a794e5ba7114 upstream.
When csw->con_startup() fails in do_register_con_driver, we return no error (i.e. 0). This was changed back in 2006 by commit 3e795de763. Before that we used to return -ENODEV.
So fix the return value to be -ENODEV in that case again.
Fixes: 3e795de763 ("VT binding: Add binding/unbinding support for the VT console") Signed-off-by: Jiri Slaby <jslaby@suse.cz> Reported-by: "Dan Carpenter" <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/tty/vt/vt.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
--- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -3583,9 +3583,10 @@ static int do_register_con_driver(const goto err; desc = csw->con_startup(); - - if (!desc) + if (!desc) { + retval = -ENODEV; goto err; + } retval = -EINVAL;
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