MIPS: Alchemy: Correct code taking the size of a pointer

sizeof(dp) is just the size of the pointer.  Change it to the size of the
referenced structure.

A simplified version of the semantic patch that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression *x;
expression f;
type T;
@@

*f(...,(T)x,...)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Patchwork: http://patchwork.linux-mips.org/patch/789/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/alchemy/common/dbdma.c b/arch/mips/alchemy/common/dbdma.c
index 19c1c82..5c68569 100644 (file)
--- a/arch/mips/alchemy/common/dbdma.c
+++ b/arch/mips/alchemy/common/dbdma.c
@@ -613,7 +613,7 @@ u32 _au1xxx_dbdma_put_source(u32 chanid, void *buf, int nbytes, u32 flags)
        dma_cache_wback_inv((unsigned long)buf, nbytes);
        dp->dscr_cmd0 |= DSCR_CMD0_V;   /* Let it rip */
        au_sync();
-       dma_cache_wback_inv((unsigned long)dp, sizeof(dp));
+       dma_cache_wback_inv((unsigned long)dp, sizeof(*dp));
        ctp->chan_ptr->ddma_dbell = 0;
 
        /* Get next descriptor pointer. */
@@ -676,7 +676,7 @@ _au1xxx_dbdma_put_dest(u32 chanid, void *buf, int nbytes, u32 flags)
        dma_cache_inv((unsigned long)buf, nbytes);
        dp->dscr_cmd0 |= DSCR_CMD0_V;   /* Let it rip */
        au_sync();
-       dma_cache_wback_inv((unsigned long)dp, sizeof(dp));
+       dma_cache_wback_inv((unsigned long)dp, sizeof(*dp));
        ctp->chan_ptr->ddma_dbell = 0;
 
        /* Get next descriptor pointer. */