diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-4.19/950-0375-staging-bcm2835-audio-Remove-redundant-substream-mas.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-4.19/950-0375-staging-bcm2835-audio-Remove-redundant-substream-mas.patch | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0375-staging-bcm2835-audio-Remove-redundant-substream-mas.patch b/target/linux/bcm27xx/patches-4.19/950-0375-staging-bcm2835-audio-Remove-redundant-substream-mas.patch deleted file mode 100644 index b2af97443c..0000000000 --- a/target/linux/bcm27xx/patches-4.19/950-0375-staging-bcm2835-audio-Remove-redundant-substream-mas.patch +++ /dev/null @@ -1,111 +0,0 @@ -From 1120b4699738a3ee748314c433a96e45182a3411 Mon Sep 17 00:00:00 2001 -From: Takashi Iwai <tiwai@suse.de> -Date: Tue, 4 Sep 2018 17:58:33 +0200 -Subject: [PATCH] staging: bcm2835-audio: Remove redundant substream - mask checks - -commit 14b1f4cba853a11c7b381ad919622f38eb194bd7 upstream. - -The avail_substreams bit mask is checked for the possible racy -accesses, but this cannot happen in practice; i.e. the assignment and -the check are superfluous. - -Let's rip them off. - -Signed-off-by: Takashi Iwai <tiwai@suse.de> -Tested-by: Stefan Wahren <stefan.wahren@i2se.com> -Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ---- - .../vc04_services/bcm2835-audio/bcm2835-ctl.c | 2 -- - .../vc04_services/bcm2835-audio/bcm2835-pcm.c | 8 -------- - .../vc04_services/bcm2835-audio/bcm2835-vchiq.c | 17 +++++++---------- - .../vc04_services/bcm2835-audio/bcm2835.c | 5 +---- - .../vc04_services/bcm2835-audio/bcm2835.h | 2 -- - 5 files changed, 8 insertions(+), 26 deletions(-) - ---- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c -+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c -@@ -64,8 +64,6 @@ static int snd_bcm2835_ctl_get(struct sn - - mutex_lock(&chip->audio_mutex); - -- BUG_ON(!chip && !(chip->avail_substreams & AVAIL_SUBSTREAMS_MASK)); -- - if (kcontrol->private_value == PCM_PLAYBACK_VOLUME) - ucontrol->value.integer.value[0] = chip2alsa(chip->volume); - else if (kcontrol->private_value == PCM_PLAYBACK_MUTE) ---- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c -+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c -@@ -118,14 +118,6 @@ static int snd_bcm2835_playback_open_gen - goto out; - } - -- /* Check if we are ready */ -- if (!(chip->avail_substreams & (1 << idx))) { -- /* We are not ready yet */ -- audio_error("substream(%d) device is not ready yet\n", idx); -- err = -EAGAIN; -- goto out; -- } -- - alsa_stream = kzalloc(sizeof(*alsa_stream), GFP_KERNEL); - if (!alsa_stream) { - err = -ENOMEM; ---- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c -+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c -@@ -523,16 +523,13 @@ int bcm2835_audio_set_ctls(struct bcm283 - - /* change ctls for all substreams */ - for (i = 0; i < MAX_SUBSTREAMS; i++) { -- if (chip->avail_substreams & (1 << i)) { -- if (!chip->alsa_stream[i]) { -- LOG_DBG(" No ALSA stream available?! %i:%p (%x)\n", i, chip->alsa_stream[i], chip->avail_substreams); -- ret = 0; -- } else if (bcm2835_audio_set_ctls_chan(chip->alsa_stream[i], chip) != 0) { -- LOG_ERR("Couldn't set the controls for stream %d\n", i); -- ret = -1; -- } else { -- LOG_DBG(" Controls set for stream %d\n", i); -- } -+ if (!chip->alsa_stream[i]) -+ continue; -+ if (bcm2835_audio_set_ctls_chan(chip->alsa_stream[i], chip) != 0) { -+ LOG_ERR("Couldn't set the controls for stream %d\n", i); -+ ret = -1; -+ } else { -+ LOG_DBG(" Controls set for stream %d\n", i); - } - } - return ret; ---- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c -+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c -@@ -280,7 +280,7 @@ static int snd_add_child_device(struct d - struct snd_card *card; - struct device *child; - struct bcm2835_chip *chip; -- int err, i; -+ int err; - - child = snd_create_device(device, &audio_driver->driver, - audio_driver->driver.name); -@@ -325,9 +325,6 @@ static int snd_add_child_device(struct d - return err; - } - -- for (i = 0; i < numchans; i++) -- chip->avail_substreams |= (1 << i); -- - err = snd_card_register(card); - if (err) { - dev_err(child, "Failed to register card, error %d\n", err); ---- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h -+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h -@@ -98,8 +98,6 @@ struct bcm2835_chip { - struct snd_card *card; - struct snd_pcm *pcm; - struct snd_pcm *pcm_spdif; -- /* Bitmat for valid reg_base and irq numbers */ -- unsigned int avail_substreams; - struct device *dev; - struct bcm2835_alsa_stream *alsa_stream[MAX_SUBSTREAMS]; - |