From 2944275b146f4c0bb229a862bd8b3930c157d2a1 Mon Sep 17 00:00:00 2001
From: Rask Ingemann Lambertsen <rask@sygehus.dk>
Date: Mon, 19 Mar 2007 11:38:11 +0100
Subject: [PATCH] [ALSA] ad1816a: Fix modprobe snd_mpu401 && modprobe
snd_ad1816a
The ad1816a driver fails if the mpu401 driver has been loaded first. This
patch against linux 2.6.20 fixes it by just ignoring the MPU-401 device in
that case, so that the rest of the sound card can be used. The ad1816a
driver already handles the MPU-401 device being unavailable due to lack of
resources in the same way.
Signed-off-by: Rask Ingemann Lambertsen <rask@sygehus.dk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
---
sound/isa/ad1816a/ad1816a.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/sound/isa/ad1816a/ad1816a.c b/sound/isa/ad1816a/ad1816a.c
index 59034507175b..fc88a31da6f5 100644
--- a/sound/isa/ad1816a/ad1816a.c
+++ b/sound/isa/ad1816a/ad1816a.c
@@ -129,8 +129,8 @@ static int __devinit snd_card_ad1816a_pnp(int dev, struct snd_card_ad1816a *acar
}
acard->devmpu = pnp_request_card_device(card, id->devs[1].id, NULL);
if (acard->devmpu == NULL) {
- kfree(cfg);
- return -EBUSY;
+ mpu_port[dev] = -1;
+ snd_printk(KERN_WARNING PFX "MPU401 device busy, skipping.\n");
}
pdev = acard->dev;
@@ -162,6 +162,10 @@ static int __devinit snd_card_ad1816a_pnp(int dev, struct snd_card_ad1816a *acar
dma2[dev] = pnp_dma(pdev, 1);
irq[dev] = pnp_irq(pdev, 0);
+ if (acard->devmpu == NULL) {
+ kfree(cfg);
+ return 0;
+ }
pdev = acard->devmpu;
pnp_init_resource_table(cfg);
--
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