alsa-lib: Fix incorrect appl pointer when mmap_commit() returns error.

The appl pointer needs to be updated only when snd_pcm_mmap_commit() is
successfully returned. Or it shouldn't be updated.
This is to fix the avail_update()'s result is incorrect when returns error.

(From OE-Core rev: fcd7e439497174256a5c467532aad402f4d19ca1)

(From OE-Core rev: 4ddef11c6a0f0a2d2ff0d4e556c0bbb3d5999f83)

Signed-off-by: Yuqing Zhu <carol.zhu@nxp.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster@mvista.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/meta/recipes-multimedia/alsa/alsa-lib_1.1.0.bb b/meta/recipes-multimedia/alsa/alsa-lib_1.1.0.bb
index a73da28828..296a7bb0ac 100644
--- a/meta/recipes-multimedia/alsa/alsa-lib_1.1.0.bb
+++ b/meta/recipes-multimedia/alsa/alsa-lib_1.1.0.bb
@@ -18,6 +18,7 @@ SRC_URI = "ftp://ftp.alsa-project.org/pub/lib/${BP}.tar.bz2 \
            file://Check-if-wordexp-function-is-supported.patch \
            file://avoid-including-sys-poll.h-directly.patch \
            file://0001-topology-Add-missing-include-sys-stat.h.patch \
+           file://0001-pcm_plugin-fix-appl-pointer-not-correct-when-mmap_co.patch \
 "
 SRC_URI[md5sum] = "69515ca73c3c4a212ef45160dea846c1"
 SRC_URI[sha256sum] = "dfde65d11e82b68f82e562ab6228c1fb7c78854345d3c57e2c68a9dd3dae1f15"