i2c-cpm: Pass dev ptr to dma_*_coherent rather than NULL

Recent DMA changes result in a BUG() when NULL is passed to
dma_alloc_coherent in place of a device.

Signed-off-by: Mark Ware <mware@elphinstone.net>
[ben-linux@fluff.org: fix patch moves]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

diff --git a/drivers/i2c/busses/i2c-cpm.c b/drivers/i2c/busses/i2c-cpm.c
index 3fcf78e906db185187d10c87466786fb3c3280c2..b5db8b8836159bf4667157654f53a5f518e901e9 100644 (file)
--- a/drivers/i2c/busses/i2c-cpm.c
+++ b/drivers/i2c/busses/i2c-cpm.c
@@ -531,16 +531,16 @@ static int __devinit cpm_i2c_setup(struct cpm_i2c *cpm)
        rbdf = cpm->rbase;
 
        for (i = 0; i < CPM_MAXBD; i++) {
-               cpm->rxbuf[i] = dma_alloc_coherent(
-                       NULL, CPM_MAX_READ + 1, &cpm->rxdma[i], GFP_KERNEL);
+               cpm->rxbuf[i] = dma_alloc_coherent(&cpm->ofdev->dev,
+                                                  CPM_MAX_READ + 1,
+                                                  &cpm->rxdma[i], GFP_KERNEL);
                if (!cpm->rxbuf[i]) {
                        ret = -ENOMEM;
                        goto out_muram;
                }
                out_be32(&rbdf[i].cbd_bufaddr, ((cpm->rxdma[i] + 1) & ~1));
 
-               cpm->txbuf[i] = (unsigned char *)dma_alloc_coherent(
-                       NULL, CPM_MAX_READ + 1, &cpm->txdma[i], GFP_KERNEL);
+               cpm->txbuf[i] = (unsigned char *)dma_alloc_coherent(&cpm->ofdev->dev, CPM_MAX_READ + 1, &cpm->txdma[i], GFP_KERNEL);
                if (!cpm->txbuf[i]) {
                        ret = -ENOMEM;
                        goto out_muram;
@@ -585,10 +585,10 @@ static int __devinit cpm_i2c_setup(struct cpm_i2c *cpm)
 out_muram:
        for (i = 0; i < CPM_MAXBD; i++) {
                if (cpm->rxbuf[i])
-                       dma_free_coherent(NULL, CPM_MAX_READ + 1,
+                       dma_free_coherent(&cpm->ofdev->dev, CPM_MAX_READ + 1,
                                cpm->rxbuf[i], cpm->rxdma[i]);
                if (cpm->txbuf[i])
-                       dma_free_coherent(NULL, CPM_MAX_READ + 1,
+                       dma_free_coherent(&cpm->ofdev->dev, CPM_MAX_READ + 1,
                                cpm->txbuf[i], cpm->txdma[i]);
        }
        cpm_muram_free(cpm->dp_addr);
@@ -619,9 +619,9 @@ static void cpm_i2c_shutdown(struct cpm_i2c *cpm)
 
        /* Free all memory */
        for (i = 0; i < CPM_MAXBD; i++) {
-               dma_free_coherent(NULL, CPM_MAX_READ + 1,
+               dma_free_coherent(&cpm->ofdev->dev, CPM_MAX_READ + 1,
                        cpm->rxbuf[i], cpm->rxdma[i]);
-               dma_free_coherent(NULL, CPM_MAX_READ + 1,
+               dma_free_coherent(&cpm->ofdev->dev, CPM_MAX_READ + 1,
                        cpm->txbuf[i], cpm->txdma[i]);
        }