diff options
| author |   Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-09-17 10:20:09 -0400 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-09-17 13:00:41 -0400 |
| commit | c468bdee28a1cb61d9b7a8ce9859d17dee43b7d7 (patch) | |
| tree | 92402ff7a4338dbf7227f8f50c9898c30416e62a /drivers | |
| parent | xen/swiotlb: Use the swiotlb_late_init_with_tbl to init Xen-SWIOTLB late when PV PCI is used. (diff) | |
| download | linux-dev-c468bdee28a1cb61d9b7a8ce9859d17dee43b7d7.tar.xz linux-dev-c468bdee28a1cb61d9b7a8ce9859d17dee43b7d7.zip | |
xen/swiotlb: For early initialization, return zero on success.
If everything is setup properly we would return -ENOMEM since
rc by default is set to that value. Lets not do that and return
a proper return code.
Note: The reason the early code needs this special treatment
is that it SWIOTLB library call does not return anything (and
had it failed it would call panic()) - but our function does.
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/xen/swiotlb-xen.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index 7461edb5118e..b70f2d19ab99 100644 --- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -230,9 +230,10 @@ retry: goto error; } start_dma_addr = xen_virt_to_bus(xen_io_tlb_start); - if (early) + if (early) { swiotlb_init_with_tbl(xen_io_tlb_start, xen_io_tlb_nslabs, verbose); - else + rc = 0; + } else rc = swiotlb_late_init_with_tbl(xen_io_tlb_start, xen_io_tlb_nslabs); return rc; error: |