[PATCH] mm: incorrect VM_FAULT_OOM returns from drivers
[linux-2.6.git] / sound / core / pcm_native.c
index 66e24b5..6ea67b1 100644 (file)
@@ -3027,7 +3027,7 @@ static struct page * snd_pcm_mmap_status_nopage(struct vm_area_struct *area,
        struct page * page;
        
        if (substream == NULL)
-               return NOPAGE_OOM;
+               return NOPAGE_SIGBUS;
        runtime = substream->runtime;
        page = virt_to_page(runtime->status);
        get_page(page);
@@ -3070,7 +3070,7 @@ static struct page * snd_pcm_mmap_control_nopage(struct vm_area_struct *area,
        struct page * page;
        
        if (substream == NULL)
-               return NOPAGE_OOM;
+               return NOPAGE_SIGBUS;
        runtime = substream->runtime;
        page = virt_to_page(runtime->control);
        get_page(page);
@@ -3131,18 +3131,18 @@ static struct page *snd_pcm_mmap_data_nopage(struct vm_area_struct *area,
        size_t dma_bytes;
        
        if (substream == NULL)
-               return NOPAGE_OOM;
+               return NOPAGE_SIGBUS;
        runtime = substream->runtime;
        offset = area->vm_pgoff << PAGE_SHIFT;
        offset += address - area->vm_start;
-       snd_assert((offset % PAGE_SIZE) == 0, return NOPAGE_OOM);
+       snd_assert((offset % PAGE_SIZE) == 0, return NOPAGE_SIGBUS);
        dma_bytes = PAGE_ALIGN(runtime->dma_bytes);
        if (offset > dma_bytes - PAGE_SIZE)
                return NOPAGE_SIGBUS;
        if (substream->ops->page) {
                page = substream->ops->page(substream, offset);
                if (! page)
-                       return NOPAGE_OOM;
+                       return NOPAGE_OOM; /* XXX: is this really due to OOM? */
        } else {
                vaddr = runtime->dma_area + offset;
                page = virt_to_page(vaddr);