[alsa-devel] [PATCH 5/5] ALSA: core: Don't allow NULL device for memory allocation

Since we covered all callers with NULL device pointer, let's catch the remaining calls with NULL and warn explicitly.

Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/core/memalloc.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c index 59a4adc286ed..eb974235c92b 100644 --- a/sound/core/memalloc.c +++ b/sound/core/memalloc.c @@ -182,6 +182,8 @@ int snd_dma_alloc_pages(int type, struct device *device, size_t size, return -ENXIO; if (WARN_ON(!dmab)) return -ENXIO; + if (WARN_ON(!device)) + return -EINVAL;

dmab->dev.type = type; dmab->dev.dev = device;