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Diffstat (limited to 'target/linux/brcm2708/patches-3.10/0146-fixes-a-bug-in-the-snd-bcm2835-driver.patch')
-rw-r--r--target/linux/brcm2708/patches-3.10/0146-fixes-a-bug-in-the-snd-bcm2835-driver.patch31
1 files changed, 31 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-3.10/0146-fixes-a-bug-in-the-snd-bcm2835-driver.patch b/target/linux/brcm2708/patches-3.10/0146-fixes-a-bug-in-the-snd-bcm2835-driver.patch
new file mode 100644
index 0000000..8deafcf
--- /dev/null
+++ b/target/linux/brcm2708/patches-3.10/0146-fixes-a-bug-in-the-snd-bcm2835-driver.patch
@@ -0,0 +1,31 @@
+From f7af161699cbbca544dd8feab4c05d9bc5ea8807 Mon Sep 17 00:00:00 2001
+From: Janis Danisevskis <werwurm@snafu.de>
+Date: Wed, 1 Jan 2014 18:41:53 +0100
+Subject: [PATCH 146/174] fixes a bug in the snd-bcm2835 driver
+
+The "instance" field of bcm2835_alsa_stream_t may be accessed uninitialized
+by bcm2835_audio_set_ctls_chan if called during stream creation. This fix
+deferres the addition to of the stream to chip untill it has been fully
+initialized.
+---
+ sound/arm/bcm2835-pcm.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/sound/arm/bcm2835-pcm.c
++++ b/sound/arm/bcm2835-pcm.c
+@@ -127,7 +127,6 @@ static int snd_bcm2835_playback_open(str
+ alsa_stream->chip = chip;
+ alsa_stream->substream = substream;
+ alsa_stream->idx = idx;
+- chip->alsa_stream[idx] = alsa_stream;
+
+ sema_init(&alsa_stream->buffers_update_sem, 0);
+ sema_init(&alsa_stream->control_sem, 0);
+@@ -149,6 +148,7 @@ static int snd_bcm2835_playback_open(str
+ kfree(alsa_stream);
+ return err;
+ }
++ chip->alsa_stream[idx] = alsa_stream;
+
+ alsa_stream->open = 1;
+ alsa_stream->draining = 1;