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2b1c6b21b5
As usual these patches were extracted and rebased from the raspberry pi repo: https://github.com/raspberrypi/linux/tree/rpi-4.4.y Also adds support for Raspberry Pi Compute Module 3 (untested). Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
64 lines
2.0 KiB
Diff
64 lines
2.0 KiB
Diff
From 385eb363335dfe4120643ea72f3060fce745b5b7 Mon Sep 17 00:00:00 2001
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From: popcornmix <popcornmix@gmail.com>
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Date: Fri, 12 Aug 2016 15:46:21 +0100
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Subject: [PATCH] snd-bcm2835: Don't allow responses from VC to be interrupted
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by user signals
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There should always be a response, and retry after a signal interruption is not handled, so don't report
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we are interruptible.
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See: https://github.com/raspberrypi/linux/issues/1560
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---
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sound/arm/bcm2835-vchiq.c | 25 ++++++-------------------
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1 file changed, 6 insertions(+), 19 deletions(-)
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--- a/sound/arm/bcm2835-vchiq.c
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+++ b/sound/arm/bcm2835-vchiq.c
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@@ -511,12 +511,7 @@ static int bcm2835_audio_set_ctls_chan(b
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}
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/* We are expecting a reply from the videocore */
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- ret = wait_for_completion_interruptible(&instance->msg_avail_comp);
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- if (ret) {
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- LOG_DBG("%s: failed on waiting for event (status=%d)\n",
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- __func__, success);
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- goto unlock;
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- }
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+ wait_for_completion(&instance->msg_avail_comp);
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if (instance->result != 0) {
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LOG_ERR("%s: result=%d\n", __func__, instance->result);
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@@ -615,12 +610,7 @@ int bcm2835_audio_set_params(bcm2835_als
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}
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/* We are expecting a reply from the videocore */
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- ret = wait_for_completion_interruptible(&instance->msg_avail_comp);
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- if (ret) {
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- LOG_DBG("%s: failed on waiting for event (status=%d)\n",
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- __func__, success);
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- goto unlock;
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- }
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+ wait_for_completion(&instance->msg_avail_comp);
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if (instance->result != 0) {
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LOG_ERR("%s: result=%d", __func__, instance->result);
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@@ -761,14 +751,11 @@ int bcm2835_audio_close(bcm2835_alsa_str
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goto unlock;
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}
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- ret = wait_for_completion_interruptible(&instance->msg_avail_comp);
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- if (ret) {
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- LOG_DBG("%s: failed on waiting for event (status=%d)\n",
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- __func__, success);
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- goto unlock;
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- }
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+ /* We are expecting a reply from the videocore */
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+ wait_for_completion(&instance->msg_avail_comp);
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+
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if (instance->result != 0) {
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- LOG_ERR("%s: failed result (status=%d)\n",
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+ LOG_ERR("%s: failed result (result=%d)\n",
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__func__, instance->result);
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ret = -1;
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