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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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313d9f28c1
The PCM substream is referred not only in the PCM callbacks but also in the irq handler and in the hotplug/unplug codes. The latter code paths don't take the PCM lock, thus the PCM may be released unexpectedly while calling PCM helper functions or accessing pcm->runtime fields. This patch implements a simple refcount to assure the PCM substream accessibility while the other codes are accessing. It needed some code refactoring in the relevant functions for avoiding the doubly spinlocks. Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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| .. | ||
| aoa | ||
| arm | ||
| atmel | ||
| core | ||
| drivers | ||
| firewire | ||
| hda | ||
| i2c | ||
| isa | ||
| mips | ||
| oss | ||
| parisc | ||
| pci | ||
| pcmcia | ||
| ppc | ||
| sh | ||
| soc | ||
| sparc | ||
| spi | ||
| synth | ||
| usb | ||
| x86 | ||
| ac97_bus.c | ||
| Kconfig | ||
| last.c | ||
| Makefile | ||
| sound_core.c | ||