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-rw-r--r--sound/core/pcm_lib.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index 4859fb1caec9..a11cd7d6295f 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -1992,8 +1992,8 @@ static int default_write_copy(struct snd_pcm_substream *substream,
int channel, unsigned long hwoff,
struct iov_iter *iter, unsigned long bytes)
{
- if (!copy_from_iter(get_dma_ptr(substream->runtime, channel, hwoff),
- bytes, iter))
+ if (copy_from_iter(get_dma_ptr(substream->runtime, channel, hwoff),
+ bytes, iter) != bytes)
return -EFAULT;
return 0;
}
@@ -2025,8 +2025,8 @@ static int default_read_copy(struct snd_pcm_substream *substream,
int channel, unsigned long hwoff,
struct iov_iter *iter, unsigned long bytes)
{
- if (!copy_to_iter(get_dma_ptr(substream->runtime, channel, hwoff),
- bytes, iter))
+ if (copy_to_iter(get_dma_ptr(substream->runtime, channel, hwoff),
+ bytes, iter) != bytes)
return -EFAULT;
return 0;
}