X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=drivers%2Fchar%2Fhvc_console.c;h=a76d2c40dd5e7e5e375a9a39054333c3752fdafa;hp=859e5005c785ae8cf23c49be41c9ed3cc4272a6f;hb=14d1adfc59ba66932ef167fdff62983e7c2b0197;hpb=9262e9149f346a5443300f8c451b8e7631e81a42

diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c
index 859e5005c785..a76d2c40dd5e 100644
--- a/drivers/char/hvc_console.c
+++ b/drivers/char/hvc_console.c
@@ -80,7 +80,8 @@ struct hvc_struct {
 	struct tty_struct *tty;
 	unsigned int count;
 	int do_wakeup;
-	char outbuf[N_OUTBUF] __ALIGNED__;
+	char *outbuf;
+	int outbuf_size;
 	int n_outbuf;
 	uint32_t vtermno;
 	struct hv_ops *ops;
@@ -319,10 +320,8 @@ static int hvc_open(struct tty_struct *tty, struct file * filp)
 	struct kobject *kobjp;
 
 	/* Auto increments kobject reference if found. */
-	if (!(hp = hvc_get_by_index(tty->index))) {
-		printk(KERN_WARNING "hvc_console: tty open failed, no vty associated with tty.\n");
+	if (!(hp = hvc_get_by_index(tty->index)))
 		return -ENODEV;
-	}
 
 	spin_lock_irqsave(&hp->lock, flags);
 	/* Check and then increment for fast path open. */
@@ -346,7 +345,7 @@ static int hvc_open(struct tty_struct *tty, struct file * filp)
 	spin_unlock_irqrestore(&hp->lock, flags);
 	/* check error, fallback to non-irq */
 	if (irq != NO_IRQ)
-		rc = request_irq(irq, hvc_handle_interrupt, SA_INTERRUPT, "hvc_console", hp);
+		rc = request_irq(irq, hvc_handle_interrupt, IRQF_DISABLED, "hvc_console", hp);
 
 	/*
 	 * If the request_irq() fails and we return an error.  The tty layer
@@ -505,7 +504,7 @@ static int hvc_write(struct tty_struct *tty, const unsigned char *buf, int count
 	if (hp->n_outbuf > 0)
 		hvc_push(hp);
 
-	while (count > 0 && (rsize = N_OUTBUF - hp->n_outbuf) > 0) {
+	while (count > 0 && (rsize = hp->outbuf_size - hp->n_outbuf) > 0) {
 		if (rsize > count)
 			rsize = count;
 		memcpy(hp->outbuf + hp->n_outbuf, buf, rsize);
@@ -538,7 +537,7 @@ static int hvc_write_room(struct tty_struct *tty)
 	if (!hp)
 		return -1;
 
-	return N_OUTBUF - hp->n_outbuf;
+	return hp->outbuf_size - hp->n_outbuf;
 }
 
 static int hvc_chars_in_buffer(struct tty_struct *tty)
@@ -668,6 +667,7 @@ int khvcd(void *unused)
 	do {
 		poll_mask = 0;
 		hvc_kicked = 0;
+		try_to_freeze();
 		wmb();
 		if (cpus_empty(cpus_in_xmon)) {
 			spin_lock(&hvc_structs_lock);
@@ -728,12 +728,13 @@ static struct kobj_type hvc_kobj_type = {
 };
 
 struct hvc_struct __devinit *hvc_alloc(uint32_t vtermno, int irq,
-					struct hv_ops *ops)
+					struct hv_ops *ops, int outbuf_size)
 {
 	struct hvc_struct *hp;
 	int i;
 
-	hp = kmalloc(sizeof(*hp), GFP_KERNEL);
+	hp = kmalloc(ALIGN(sizeof(*hp), sizeof(long)) + outbuf_size,
+			GFP_KERNEL);
 	if (!hp)
 		return ERR_PTR(-ENOMEM);
 
@@ -742,6 +743,8 @@ struct hvc_struct __devinit *hvc_alloc(uint32_t vtermno, int irq,
 	hp->vtermno = vtermno;
 	hp->irq = irq;
 	hp->ops = ops;
+	hp->outbuf_size = outbuf_size;
+	hp->outbuf = &((char *)hp)[ALIGN(sizeof(*hp), sizeof(long))];
 
 	kobject_init(&hp->kobj);
 	hp->kobj.ktype = &hvc_kobj_type;