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Takashi Iwai dc0dc8a73e ALSA: pcm: Fix mmap breakage without explicit buffer setup 
The recent fix c4824ae7db ("ALSA: pcm: Fix mmap capability check")
restricts the mmap capability only to the drivers that properly set up
the buffers, but it caused a regression for a few drivers that manage
the buffer on its own way.

For those with UNKNOWN buffer type (i.e. the uninitialized / unused
substream->dma_buffer), just assume that the driver handles the mmap
properly and blindly trust the hardware info bit.

Fixes: c4824ae7db ("ALSA: pcm: Fix mmap capability check")
Reported-and-tested-by: Jeff Woods <jwoods@fnordco.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/s5him0gpghv.wl-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
 		2021-08-09 07:52:31 +02:00
..
oss ALSA: oss: Fix assignment in if condition 2021-06-09 17:30:25 +02:00
seq ALSA: seq: Fix racy deletion of subscriber 2021-08-03 13:43:40 +02:00
Kconfig ALSA: control - add generic LED trigger module as the new control layer 2021-03-30 15:33:58 +02:00
Makefile ALSA: control - add generic LED trigger module as the new control layer 2021-03-30 15:33:58 +02:00
compress_offload.c
…
control.c ALSA: control: Minor optimization for SNDRV_CTL_IOCTL_POWER_STATE 2021-05-25 08:49:06 +02:00
control_compat.c ALSA: control: Drop superfluous snd_power_wait() calls 2021-05-25 08:48:49 +02:00
control_led.c ALSA: control_led - fix initialization in the mode show callback 2021-06-14 09:50:34 +02:00
ctljack.c
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device.c
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hrtimer.c
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hwdep.c ALSA: core: Fix assignment in if condition 2021-06-09 17:30:22 +02:00
hwdep_compat.c
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info.c
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info_oss.c ALSA: core: Fix assignment in if condition 2021-06-09 17:30:22 +02:00
init.c ALSA: core: Fix assignment in if condition 2021-06-09 17:30:22 +02:00
isadma.c
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jack.c ALSA: jack: implement software jack injection via debugfs 2021-02-02 10:37:07 +01:00
memalloc.c ALSA: memalloc: Fix regression with SNDRV_DMA_TYPE_CONTINUOUS 2021-08-02 09:03:22 +02:00
memalloc_local.h ALSA: core: Move mmap handler into memalloc ops 2021-06-10 10:15:21 +02:00
memory.c
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misc.c
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pcm.c ALSA: pcm: use DEVICE_ATTR_RO macro 2021-05-25 09:00:04 +02:00
pcm_compat.c ALSA: pcm: Fix assignment in if condition 2021-06-09 17:30:24 +02:00
pcm_dmaengine.c ASoC: dmaengine_pcm: add peripheral configuration 2021-02-05 17:16:41 +00:00
pcm_drm_eld.c
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pcm_iec958.c ALSA: iec958: Split status creation and fill 2021-06-08 17:05:41 +02:00
pcm_lib.c ALSA: pcm: add snd_pcm_period_elapsed() variant without acquiring lock of PCM substream 2021-06-10 09:49:54 +02:00
pcm_local.h ALSA: core: Abstract memory alloc helpers 2021-06-10 10:15:21 +02:00
pcm_memory.c ALSA: core: Abstract memory alloc helpers 2021-06-10 10:15:21 +02:00
pcm_misc.c ALSA: pcm: Fix assignment in if condition 2021-06-09 17:30:24 +02:00
pcm_native.c ALSA: pcm: Fix mmap breakage without explicit buffer setup 2021-08-09 07:52:31 +02:00
pcm_param_trace.h
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pcm_timer.c
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pcm_trace.h
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rawmidi.c ALSA: rawmidi: fix incorrect array bounds check on clock_names 2021-05-19 16:20:25 +02:00
rawmidi_compat.c ALSA: rawmidi: Add framing mode 2021-05-17 16:02:44 +02:00
seq_device.c ALSA: core: avoid -Wempty-body warnings 2021-03-22 12:26:00 +01:00
sgbuf.c ALSA: core: Abstract memory alloc helpers 2021-06-10 10:15:21 +02:00
sound.c ALSA: core: Fix assignment in if condition 2021-06-09 17:30:22 +02:00
sound_oss.c ALSA: core: Fix assignment in if condition 2021-06-09 17:30:22 +02:00
timer.c ALSA: timer: Fix master timer notification 2021-06-03 09:39:58 +02:00
timer_compat.c
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vmaster.c
…