From: Takashi Iwai <tiwai@suse.de>
Date: Sat, 1 Feb 2020 08:05:30 +0000 (+0100)
Subject: ALSA: dummy: Fix PCM format loop in proc output
X-Git-Tag: Ubuntu-5.4.0-17.21~900
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=6fe6832df9d326cd34bf7b47233f5b183a039727;p=mirror_ubuntu-focal-kernel.git

ALSA: dummy: Fix PCM format loop in proc output

BugLink: https://bugs.launchpad.net/bugs/1863588

commit 2acf25f13ebe8beb40e97a1bbe76f36277c64f1e upstream.

The loop termination for iterating over all formats should contain
SNDRV_PCM_FORMAT_LAST, not less than it.

Fixes: 9b151fec139d ("ALSA: dummy - Add debug proc file")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200201080530.22390-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>
---

diff --git a/sound/drivers/dummy.c b/sound/drivers/dummy.c
index aee7c04d49e5..b61ba0321a72 100644
--- a/sound/drivers/dummy.c
+++ b/sound/drivers/dummy.c
@@ -915,7 +915,7 @@ static void print_formats(struct snd_dummy *dummy,
 {
 	int i;
 
-	for (i = 0; i < SNDRV_PCM_FORMAT_LAST; i++) {
+	for (i = 0; i <= SNDRV_PCM_FORMAT_LAST; i++) {
 		if (dummy->pcm_hw.formats & (1ULL << i))
 			snd_iprintf(buffer, " %s", snd_pcm_format_name(i));
 	}