linux-kernel - [PATCH 4/4] ALSA: add dummy function to support shared mmap in nommu Blackfin arch

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Date:	Wed, 27 Aug 2008 17:39:28 +0800
From:	Bryan Wu <cooloney@...nel.org>
To:	perex@...ex.cz, liam.girdwood@...fsonmicro.com,
	broonie@...nsource.wolfsonmicro.com
Cc:	alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
	Cliff Cai <cliff.cai@...log.com>,
	Bryan Wu <cooloney@...nel.org>
Subject: [PATCH 4/4] ALSA: add dummy function to support shared mmap in nommu Blackfin arch

From: Cliff Cai <cliff.cai@...log.com>

Signed-off-by: Cliff Cai <cliff.cai@...log.com>
Signed-off-by: Bryan Wu <cooloney@...nel.org>
---
 sound/core/pcm_native.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index c49b9d9..cb202a1 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -3391,6 +3391,12 @@ out:
 }
 #endif /* CONFIG_SND_SUPPORT_OLD_API */
 
+unsigned long dummy_get_unmapped_area(struct file *file, unsigned long addr,
+				      unsigned long len, unsigned long pgoff, unsigned long flags)
+{
+	return 0;
+}
+
 /*
  *  Register section
  */
@@ -3407,6 +3413,7 @@ const struct file_operations snd_pcm_f_ops[2] = {
 		.compat_ioctl = 	snd_pcm_ioctl_compat,
 		.mmap =			snd_pcm_mmap,
 		.fasync =		snd_pcm_fasync,
+		.get_unmapped_area =	dummy_get_unmapped_area,
 	},
 	{
 		.owner =		THIS_MODULE,
@@ -3419,5 +3426,6 @@ const struct file_operations snd_pcm_f_ops[2] = {
 		.compat_ioctl = 	snd_pcm_ioctl_compat,
 		.mmap =			snd_pcm_mmap,
 		.fasync =		snd_pcm_fasync,
+		.get_unmapped_area =	dummy_get_unmapped_area,
 	}
 };
-- 
1.5.6
--
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