[PATCH -hg] Build fix for mercurial tree

[Mauro Carvalho Chehab <mchehab@redhat.com>]

Fix backport tree compilations with kernels older than 2.6.33.

Compile tested only, with 2.6.32.4 kernel.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/linux/drivers/media/IR/ir-core-priv.h b/linux/drivers/media/IR/ir-core-priv.h
--- a/linux/drivers/media/IR/ir-core-priv.h
+++ b/linux/drivers/media/IR/ir-core-priv.h
@@ -28,7 +28,11 @@ struct ir_raw_handler {
 
 struct ir_raw_event_ctrl {
 	struct work_struct		rx_work;	/* for the rx decoding workqueue */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 33)
+	struct kfifo			*kfifo;		/* fifo for the pulse/space durations */
+#else
 	struct kfifo			kfifo;		/* fifo for the pulse/space durations */
+#endif
 	ktime_t				last_event;	/* when last event occurred */
 	enum raw_event_type		last_type;	/* last event type */
 	struct input_dev		*input_dev;	/* pointer to the parent input_dev */
diff --git a/linux/drivers/media/IR/ir-raw-event.c b/linux/drivers/media/IR/ir-raw-event.c
--- a/linux/drivers/media/IR/ir-raw-event.c
+++ b/linux/drivers/media/IR/ir-raw-event.c
@@ -61,8 +61,13 @@ static void ir_raw_event_work(struct wor
 	struct ir_raw_event_ctrl *raw =
 		container_of(work, struct ir_raw_event_ctrl, rx_work);
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 33)
+	while (kfifo_get(raw->kfifo, (void *)&ev, sizeof(ev)) == sizeof(ev))
+		RUN_DECODER(decode, raw->input_dev, ev);
+#else
 	while (kfifo_out(&raw->kfifo, &ev, sizeof(ev)) == sizeof(ev))
 		RUN_DECODER(decode, raw->input_dev, ev);
+#endif
 }
 
 int ir_raw_event_register(struct input_dev *input_dev)
@@ -77,8 +82,15 @@ int ir_raw_event_register(struct input_d
 	ir->raw->input_dev = input_dev;
 	INIT_WORK(&ir->raw->rx_work, ir_raw_event_work);
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 33)
+	ir->raw->kfifo = kfifo_alloc(sizeof(s64) * MAX_IR_EVENT_SIZE,
+				     GFP_KERNEL, NULL);
+	if (ir->raw->kfifo == NULL)
+		rc = -ENOMEM;
+#else
 	rc = kfifo_alloc(&ir->raw->kfifo, sizeof(s64) * MAX_IR_EVENT_SIZE,
 			 GFP_KERNEL);
+#endif
 	if (rc < 0) {
 		kfree(ir->raw);
 		ir->raw = NULL;
@@ -87,7 +99,11 @@ int ir_raw_event_register(struct input_d
 
 	rc = RUN_DECODER(raw_register, input_dev);
 	if (rc < 0) {
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 33)
+		kfifo_free(ir->raw->kfifo);
+#else
 		kfifo_free(&ir->raw->kfifo);
+#endif
 		kfree(ir->raw);
 		ir->raw = NULL;
 		return rc;
@@ -106,7 +122,11 @@ void ir_raw_event_unregister(struct inpu
 	cancel_work_sync(&ir->raw->rx_work);
 	RUN_DECODER(raw_unregister, input_dev);
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 33)
+	kfifo_free(ir->raw->kfifo);
+#else
 	kfifo_free(&ir->raw->kfifo);
+#endif
 	kfree(ir->raw);
 	ir->raw = NULL;
 }
@@ -128,8 +148,13 @@ int ir_raw_event_store(struct input_dev 
 	if (!ir->raw)
 		return -EINVAL;
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 33)
+	if (kfifo_put(ir->raw->kfifo, (void *)ev, sizeof(*ev)) != sizeof(*ev))
+		return -ENOMEM;
+#else
 	if (kfifo_in(&ir->raw->kfifo, ev, sizeof(*ev)) != sizeof(*ev))
 		return -ENOMEM;
+#endif
 
 	return 0;
 }