2 files changed, 6 insertions, 2 deletions

diff --git a/arch/mips/alchemy/common/dbdma.c b/arch/mips/alchemy/common/dbdma.c
index 5c68569344c1..f9201ca2295b 100644
--- a/arch/mips/alchemy/common/dbdma.c
+++ b/arch/mips/alchemy/common/dbdma.c
@@ -412,8 +412,11 @@ u32 au1xxx_dbdma_ring_alloc(u32 chanid, int entries)
                 if (desc_base == 0)
                         return 0;
 
+                ctp->cdb_membase = desc_base;
                 desc_base = ALIGN_ADDR(desc_base, sizeof(au1x_ddma_desc_t));
-        }
+        } else
+                ctp->cdb_membase = desc_base;
+
         dp = (au1x_ddma_desc_t *)desc_base;
 
         /* Keep track of the base descriptor. */
@@ -831,7 +834,7 @@ void au1xxx_dbdma_chan_free(u32 chanid)
 
         au1xxx_dbdma_stop(chanid);
 
-        kfree((void *)ctp->chan_desc_base);
+        kfree((void *)ctp->cdb_membase);
 
         stp->dev_flags &= ~DEV_FLAGS_INUSE;
         dtp->dev_flags &= ~DEV_FLAGS_INUSE;
diff --git a/arch/mips/include/asm/mach-au1x00/au1xxx_dbdma.h b/arch/mips/include/asm/mach-au1x00/au1xxx_dbdma.h
index 06f68f43800a..d206000fbfe2 100644
--- a/arch/mips/include/asm/mach-au1x00/au1xxx_dbdma.h
+++ b/arch/mips/include/asm/mach-au1x00/au1xxx_dbdma.h
@@ -305,6 +305,7 @@ typedef struct dbdma_chan_config {
         dbdev_tab_t             *chan_dest;
         au1x_dma_chan_t         *chan_ptr;
         au1x_ddma_desc_t        *chan_desc_base;
+        u32                     cdb_membase; /* kmalloc base of above */
         au1x_ddma_desc_t        *get_ptr, *put_ptr, *cur_ptr;
         void                    *chan_callparam;
         void                    (*chan_callback)(int, void *);