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authorMiche Baker-Harvey <miche@google.com>2011-10-05 10:48:51 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2011-10-18 14:17:10 -0700
commit361162459f62dc0826b82c9690a741a940f457f0 (patch)
tree5ad067d69e9f3d765c4a28dc75b1a89fdfca494c /drivers/tty
parent53d785ccd918d571c227d459477793872676fc02 (diff)
hvc_console: display printk messages on console.
printk only works for "registered consoles." Currently, the hvc_console code calls register_console() from hvc_instantiate(), but that's only used in the early console case. In hvc_alloc(), register_console() was not called. Add a call to register_console() in hvc_alloc(), set up the index in the hvc_console, and set up the necessary vtermnos[] and cons_op[] entries so that printk functions work. Signed-off-by: Miche Baker-Harvey <miche@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/tty')
-rw-r--r--drivers/tty/hvc/hvc_console.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
index b6b2d18fa38d..7430bc3c8d53 100644
--- a/drivers/tty/hvc/hvc_console.c
+++ b/drivers/tty/hvc/hvc_console.c
@@ -852,7 +852,7 @@ struct hvc_struct *hvc_alloc(uint32_t vtermno, int data,
* find index to use:
* see if this vterm id matches one registered for console.
*/
- for (i=0; i < MAX_NR_HVC_CONSOLES; i++)
+ for (i = 0; i < MAX_NR_HVC_CONSOLES; i++)
if (vtermnos[i] == hp->vtermno &&
cons_ops[i] == hp->ops)
break;
@@ -862,9 +862,13 @@ struct hvc_struct *hvc_alloc(uint32_t vtermno, int data,
i = ++last_hvc;
hp->index = i;
+ hvc_console.index = i;
+ vtermnos[i] = vtermno;
+ cons_ops[i] = ops;
list_add_tail(&(hp->next), &hvc_structs);
spin_unlock(&hvc_structs_lock);
+ register_console(&hvc_console);
return hp;
}
@@ -875,6 +879,7 @@ int hvc_remove(struct hvc_struct *hp)
unsigned long flags;
struct tty_struct *tty;
+ unregister_console(&hvc_console);
spin_lock_irqsave(&hp->lock, flags);
tty = tty_kref_get(hp->tty);