[SPARC]: show device name in /proc/dvma_map

This patch will set the device name in a resource, which will be shown
in /proc/dvma_map.

Signed-off-by: Martin Habets <errandir_news@mph.eclipse.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 0 deletions

diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 460f72e640e6..f9ff29734848 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -274,6 +274,11 @@ void *sbus_alloc_consistent(struct sbus_dev *sdev, long len, u32 *dma_addrp)
         if (mmu_map_dma_area(dma_addrp, va, res->start, len_total) != 0)
                 goto err_noiommu;
 
+        /* Set the resource name, if known. */
+        if (sdev) {
+                res->name = sdev->prom_name;
+        }
+
         return (void *)res->start;
 
 err_noiommu: