From: Wang YanQing <udknight@gmail.com>
To: tiwai@suse.de
Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org,
fengguang.wu@intel.com
Subject: [PATCH] ALSA: hda: Fix assign invalid fixed slots pcm numbers to HDA_PCM_TYPE_HDMI in get_empty_pcm_device
Date: Sun, 3 Sep 2017 21:52:31 +0800 [thread overview]
Message-ID: <20170903135231.GB2278@udknight> (raw)
The length of pcm_dev_bits in hda_bus is SNDRV_PCM_DEVICES,
and the definiton of SNDRV_PCM_DEVICES is:
"
#if defined(CONFIG_SND_DYNAMIC_MINORS)
#define SNDRV_PCM_DEVICES (SNDRV_OS_MINORS-2)
#else
#define SNDRV_PCM_DEVICES 8
#endif
"
So the max valid fixed slots pcm number is 7, and the first
non-fixed slot is 8.
Signed-off-by: Wang YanQing <udknight@gmail.com>
---
sound/pci/hda/hda_codec.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 3db26c4..df6b57e 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -3118,7 +3118,7 @@ static int get_empty_pcm_device(struct hda_bus *bus, unsigned int type)
static int audio_idx[HDA_PCM_NTYPES][5] = {
[HDA_PCM_TYPE_AUDIO] = { 0, 2, 4, 5, -1 },
[HDA_PCM_TYPE_SPDIF] = { 1, -1 },
- [HDA_PCM_TYPE_HDMI] = { 3, 7, 8, 9, -1 },
+ [HDA_PCM_TYPE_HDMI] = { 3, 7, -1 },
[HDA_PCM_TYPE_MODEM] = { 6, -1 },
};
int i;
@@ -3139,7 +3139,7 @@ static int get_empty_pcm_device(struct hda_bus *bus, unsigned int type)
#ifdef CONFIG_SND_DYNAMIC_MINORS
/* non-fixed slots starting from 10 */
- for (i = 10; i < 32; i++) {
+ for (i = 8; i < 32; i++) {
if (!test_and_set_bit(i, bus->pcm_dev_bits))
return i;
}
--
1.8.5.6.2.g3d8a54e.dirty
next reply other threads:[~2017-09-03 13:55 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-03 13:52 Wang YanQing [this message]
2017-09-03 14:35 ` Takashi Iwai
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170903135231.GB2278@udknight \
--to=udknight@gmail.com \
--cc=alsa-devel@alsa-project.org \
--cc=fengguang.wu@intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=tiwai@suse.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®