vc: create vcs(a) devices for consoles

The buffer for the consoles are unconditionally allocated at con_init()
time, which miss the creation of the vcs(a) devices.

Since 2.6.30 (commit 4995f8ef9d3aac72745e12419d7fbaa8d01b1d81, 'vcs:
hook sysfs devices into object lifetime instead of "binding"' to be
exact) these devices are no longer created at open() and removed on
close(), but controlled by the lifetime of the buffers.

Reported-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>
Tested-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>
Cc: stable@kernel.org
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/char/vc_screen.c b/drivers/char/vc_screen.c
index d94d25c..c1791a6 100644 (file)
--- a/drivers/char/vc_screen.c
+++ b/drivers/char/vc_screen.c
@@ -495,11 +495,15 @@ void vcs_remove_sysfs(int index)
 
 int __init vcs_init(void)
 {
 
 int __init vcs_init(void)
 {

+       unsigned int i;
+

        if (register_chrdev(VCS_MAJOR, "vcs", &vcs_fops))
                panic("unable to get major %d for vcs device", VCS_MAJOR);
        vc_class = class_create(THIS_MODULE, "vc");
 
        device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 0), NULL, "vcs");
        device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 128), NULL, "vcsa");
        if (register_chrdev(VCS_MAJOR, "vcs", &vcs_fops))
                panic("unable to get major %d for vcs device", VCS_MAJOR);
        vc_class = class_create(THIS_MODULE, "vc");
 
        device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 0), NULL, "vcs");
        device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 128), NULL, "vcsa");

+       for (i = 0; i < MIN_NR_CONSOLES; i++)
+               vcs_make_sysfs(i);

        return 0;
 }
        return 0;
 }