On Wed, 26 Dec 2018 18:57:47 +0100, Pierre-Louis Bossart wrote: > > > On 12/25/18 8:29 PM, Kangjie Lu wrote: > > snd_pcm_lib_malloc_pages() may fail, so let's check its status and > > return its error code upstream. > > Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx> This fixes a potential kernel Oops. Mark, please put Cc to stable when applying. thanks, Takashi > > > > > > Signed-off-by: Kangjie Lu <kjlu@xxxxxxx> > > --- > > sound/soc/intel/atom/sst-mfld-platform-pcm.c | 8 +++++++- > > 1 file changed, 7 insertions(+), 1 deletion(-) > > > > diff --git a/sound/soc/intel/atom/sst-mfld-platform-pcm.c b/sound/soc/intel/atom/sst-mfld-platform-pcm.c > > index afc559866095..91a2436ce952 100644 > > --- a/sound/soc/intel/atom/sst-mfld-platform-pcm.c > > +++ b/sound/soc/intel/atom/sst-mfld-platform-pcm.c > > @@ -399,7 +399,13 @@ static int sst_media_hw_params(struct snd_pcm_substream *substream, > > struct snd_pcm_hw_params *params, > > struct snd_soc_dai *dai) > > { > > - snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params)); > > + int ret; > > + > > + ret = > > + snd_pcm_lib_malloc_pages(substream, > > + params_buffer_bytes(params)); > > + if (ret) > > + return ret; > > memset(substream->runtime->dma_area, 0, params_buffer_bytes(params)); > > return 0; > > } > _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel