Re: [RFC-final] videobuf tree

[Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxx>]

Hi Michael,

Please try the enclosed patch. It is just a hack. 

Please, post the dmesg, working or not.

Cheers,
Mauro.

diff -r 62d749961694 linux/drivers/media/video/videobuf-core.c
--- a/linux/drivers/media/video/videobuf-core.c	Fri Aug 24 02:22:15 2007 +0200
+++ b/linux/drivers/media/video/videobuf-core.c	Sun Oct 07 00:48:50 2007 -0300
@@ -92,10 +92,25 @@ int videobuf_iolock(struct videobuf_queu
 int videobuf_iolock(struct videobuf_queue* q, struct videobuf_buffer *vb,
 		    struct v4l2_framebuffer *fbuf)
 {
+	int rc;
+
+printk("%s: init\n",__FUNCTION__);
+
 	MAGIC_CHECK(vb->magic,MAGIC_BUFFER);
 	MAGIC_CHECK(q->int_ops->magic,MAGIC_QTYPE_OPS);
 
-	return CALL(q,iolock,q,vb,fbuf);
+	schedule();
+
+//	mutex_lock(&q->lock);
+
+printk("%s: calling actual handler\n",__FUNCTION__);
+
+	rc = CALL(q,iolock,q,vb,fbuf);
+//	mutex_unlock(&q->lock);
+
+printk("%s: return\n",__FUNCTION__);
+
+	return rc;
 }
 
 /* --------------------------------------------------------------------- */
@@ -915,12 +930,18 @@ int videobuf_mmap_mapper(struct videobuf
 {
 	int retval;
 
-	MAGIC_CHECK(q->int_ops->magic,MAGIC_QTYPE_OPS);
+printk("%s: init\n",__FUNCTION__);
 
 	mutex_lock(&q->lock);
+
+	MAGIC_CHECK(q->int_ops->magic,MAGIC_QTYPE_OPS);
+printk("%s: calling actual handler\n",__FUNCTION__);
+
 	retval=CALL(q,mmap_mapper,q,vma);
+
 	mutex_unlock(&q->lock);
 
+printk("%s: returning\n",__FUNCTION__);
 	return retval;
 }
 

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