| commit | c7dae7c4c60693286298e300b3d140c8cff46daa | |
| author | Charles Keepax <ckeepax@opensource.wolfsonmicro.com> | |
| Fri, 19 Feb 2016 14:44:41 +0000 (19 14:44 +0000) | ||
| committer | Mark Brown <broonie@kernel.org> | |
| Sat, 20 Feb 2016 18:08:19 +0000 (21 03:08 +0900) | ||
| tree | 276a4911fa5106e5ebdb9f0916b5a7db6cc6032d | treesnapshot (tar.gz zip) |
| parent | da2b33589013b4cb3dad163f50fae060896cb8b6 | commitdiff |
ASoC: wm_adsp: Avoid narrow race condition on compr pointer
There is a very small window between then wm_adsp_compr_free gets call
and when the DSP is actually powered down. If we get an IRQ from the DSP
in this window then the wm_adsp_compr pointer will be NULL. This patch
adds a check for this into the IRQ handler to avoid any issues when this
happens.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
There is a very small window between then wm_adsp_compr_free gets call
and when the DSP is actually powered down. If we get an IRQ from the DSP
in this window then the wm_adsp_compr pointer will be NULL. This patch
adds a check for this into the IRQ handler to avoid any issues when this
happens.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
| sound/soc/codecs/wm_adsp.c | diffblobblamehistory |