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authorFuqian Huang <huangfq.daxian@gmail.com>2019-06-28 01:33:46 +0800
committerJens Axboe <axboe@kernel.dk>2019-06-29 09:42:23 -0600
commitfec36aae0de14e31c7cf3e8be172d10a966de2ea (patch)
tree07a304ec1f2e0b9c5a09114f72a862dc67280991
parentca156e006add67e4beea7896be395160735e09b0 (diff)
ata: acard-ahci: Remove call to memset after dmam_alloc_coherent
In commit af7ddd8a627c ("Merge tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mapping"), dmam_alloc_coherent has already zeroed the memory. So memset is not needed. Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--drivers/ata/acard-ahci.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/ata/acard-ahci.c b/drivers/ata/acard-ahci.c
index b1b49dbd0b14..85357f27a66b 100644
--- a/drivers/ata/acard-ahci.c
+++ b/drivers/ata/acard-ahci.c
@@ -344,7 +344,6 @@ static int acard_ahci_port_start(struct ata_port *ap)
mem = dmam_alloc_coherent(dev, dma_sz, &mem_dma, GFP_KERNEL);
if (!mem)
return -ENOMEM;
- memset(mem, 0, dma_sz);
/*
* First item in chunk of DMA memory: 32-slot command table,