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Diffstat (limited to 'include/sound/memalloc.h')
-rw-r--r--include/sound/memalloc.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/include/sound/memalloc.h b/include/sound/memalloc.h
index 3b47832b1c1f..5daa937684a4 100644
--- a/include/sound/memalloc.h
+++ b/include/sound/memalloc.h
@@ -94,7 +94,11 @@ static inline dma_addr_t snd_sgbuf_get_addr(struct snd_dma_buffer *dmab,
size_t offset)
{
struct snd_sg_buf *sgbuf = dmab->private_data;
- dma_addr_t addr = sgbuf->table[offset >> PAGE_SHIFT].addr;
+ dma_addr_t addr;
+
+ if (!sgbuf)
+ return dmab->addr + offset;
+ addr = sgbuf->table[offset >> PAGE_SHIFT].addr;
addr &= ~((dma_addr_t)PAGE_SIZE - 1);
return addr + offset % PAGE_SIZE;
}
@@ -106,6 +110,9 @@ static inline void *snd_sgbuf_get_ptr(struct snd_dma_buffer *dmab,
size_t offset)
{
struct snd_sg_buf *sgbuf = dmab->private_data;
+
+ if (!sgbuf)
+ return dmab->area + offset;
return sgbuf->table[offset >> PAGE_SHIFT].buf + offset % PAGE_SIZE;
}