iop-adma: fixup some kzalloc/memset confusions

1) Remove an explicit memset(.., 0, ...) to a variable allocated with
kzalloc (i.e. 'dest').

2) Allocate 'src' with kmalloc instead of kzalloc as all elements of the
'src' buffer are initialized in a 'for(...)' loop just after.

3) remove useless 'sizeof(u8)', which always returns 1, when computing the
size of the memory to be allocated.

Signed-off-by: Christophe Jaillet <christophe.jaillet@wanadoo.fr>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c
index 762b729..0ec0f43 100644 (file)
--- a/drivers/dma/iop-adma.c
+++ b/drivers/dma/iop-adma.c
@@ -821,10 +821,10 @@ static int __devinit iop_adma_memcpy_self_test(struct iop_adma_device *device)
 
        dev_dbg(device->common.dev, "%s\n", __func__);
 
-       src = kzalloc(sizeof(u8) * IOP_ADMA_TEST_SIZE, GFP_KERNEL);
+       src = kmalloc(IOP_ADMA_TEST_SIZE, GFP_KERNEL);
        if (!src)
                return -ENOMEM;
-       dest = kzalloc(sizeof(u8) * IOP_ADMA_TEST_SIZE, GFP_KERNEL);
+       dest = kzalloc(IOP_ADMA_TEST_SIZE, GFP_KERNEL);
        if (!dest) {
                kfree(src);
                return -ENOMEM;
@@ -834,8 +834,6 @@ static int __devinit iop_adma_memcpy_self_test(struct iop_adma_device *device)
        for (i = 0; i < IOP_ADMA_TEST_SIZE; i++)
                ((u8 *) src)[i] = (u8)i;
 
-       memset(dest, 0, IOP_ADMA_TEST_SIZE);
-
        /* Start copy, using first DMA channel */
        dma_chan = container_of(device->common.channels.next,
                                struct dma_chan,