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thunderbolt: Use kmemdup instead of kzalloc and memcpy

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Fixes coccicheck warning:
drivers/thunderbolt/dma_test.c:302:13-20: WARNING opportunity for kmemdup.

Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
This commit is contained in:
Tian Tao 2020-12-23 09:26:33 +08:00 committed by Mika Westerberg
parent 5c8fe583cc
commit 82096ecf58
1 changed files with 1 additions and 3 deletions
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4
drivers/thunderbolt/dma_test.c
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@ -299,14 +299,12 @@ static int dma_test_submit_tx(struct dma_test *dt, size_t npackets)
tf->frame.size = 0; /* means 4096 */
tf->dma_test = dt;
tf->data = kzalloc(DMA_TEST_FRAME_SIZE, GFP_KERNEL);
tf->data = kmemdup(dma_test_pattern, DMA_TEST_FRAME_SIZE, GFP_KERNEL);
if (!tf->data) {
kfree(tf);
return -ENOMEM;
}
memcpy(tf->data, dma_test_pattern, DMA_TEST_FRAME_SIZE);
dma_addr = dma_map_single(dma_dev, tf->data, DMA_TEST_FRAME_SIZE,
DMA_TO_DEVICE);
if (dma_mapping_error(dma_dev, dma_addr)) {