cdf3049537
Performing USB POPI during audio stream can cause a situation where usb_audio_disconnect() gets stuck. Consider a scenario, handle_uaudio_stream_req() increases the usage_count and calls enable_audio_stream(). If disconnect happens during this time, usb_audio_disconnect() waits for usage_count) to be zero. And in the meantime, handle_uaudio_stream_req() will decrease the usage_count, but usb_audio_disconnect will not proceed since wake_up() wasn't called. wait_event() requires wake_up() to be called after changing any variable that could change the result of the wait condition. Fix this by calling wake_up() in handle_uaudio_stream_req() after decreasing the usage_count. Change-Id: Ia4d8e7ab789d284476dfdd28eb53d81c8ac9b5b8 Signed-off-by: Prashanth K <quic_prashk@quicinc.com> |
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| .. | ||
| ac97 | ||
| aoa | ||
| arm | ||
| atmel | ||
| core | ||
| drivers | ||
| firewire | ||
| hda | ||
| i2c | ||
| isa | ||
| mips | ||
| oss | ||
| parisc | ||
| pci | ||
| pcmcia | ||
| ppc | ||
| sh | ||
| soc | ||
| sparc | ||
| spi | ||
| synth | ||
| usb | ||
| virtio | ||
| x86 | ||
| xen | ||
| ac97_bus.c | ||
| Kconfig | ||
| last.c | ||
| Makefile | ||
| sound_core.c | ||