-
由 Johan Hovold 提交于
This reverts commit 99b04f4c ("ASoC: add Component level pcm_new/pcm_free"), which started calling the pcm_new callback for every component in a *card* when creating a new pcm, something which does not seem to make any sense. This specifically led to memory leaks in systems with more than one platform component and where DMA memory is allocated in the platform-driver callback. For example, when both mcasp devices are being used on an am335x board, DMA memory would be allocated twice for every DAI link during probe. When CONFIG_SND_VERBOSE_PROCFS was set this fortunately also led to warnings such as: WARNING: CPU: 0 PID: 565 at ../fs/proc/generic.c:346 proc_register+0x110/0x154 proc_dir_entry 'sub0/prealloc' already registered Since there seems to be no users of the new component callbacks, and the current implementation introduced a regression, let's revert the offending commit for now. Fixes: 99b04f4c ("ASoC: add Component level pcm_new/pcm_free") Signed-off-by: NJohan Hovold <johan@kernel.org> Reviewed-by: NLinus Walleij <linus.walleij@linaro.org> Tested-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NMark Brown <broonie@kernel.org> Cc: stable <stable@vger.kernel.org> # 4.10
c641e5b2