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| author | Takashi Iwai <tiwai@suse.de> | 2019-02-04 14:34:00 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2019-02-05 11:05:26 +0100 |
| commit | 6ce1d63ed7210e7120070297976460f868c36314 (patch) | |
| tree | d5759f217a1e21bfe555e8f609dd54bacc1ab1b4 /sound/core | |
| parent | ASoC: sh: Avoid passing NULL to memory allocators (diff) | |
| download | linux-6ce1d63ed7210e7120070297976460f868c36314.tar.xz linux-6ce1d63ed7210e7120070297976460f868c36314.zip | |
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.
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core')
| -rw-r--r-- | sound/core/memalloc.c | 2 |
1 files changed, 2 insertions, 0 deletions
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; |