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iommu/dart: Use kmemdup instead of kzalloc and memcpy

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Fix following coccicheck warning:
drivers/iommu/apple-dart.c:704:20-27: WARNING opportunity for kmemdup

Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Acked-by: Sven Peter <sven@svenpeter.dev>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Link: https://lore.kernel.org/r/20211013063441.29888-1-wanjiabing@vivo.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Wan Jiabing 2021-10-13 02:34:41 -04:00 committed by Joerg Roedel
parent 9e1ff307c7
commit 260aecd643
1 changed files with 1 additions and 2 deletions
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3
drivers/iommu/apple-dart.c
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@ -702,13 +702,12 @@ static struct iommu_group *apple_dart_device_group(struct device *dev)
if (!group)
goto out;
group_master_cfg = kzalloc(sizeof(*group_master_cfg), GFP_KERNEL);
group_master_cfg = kmemdup(cfg, sizeof(*group_master_cfg), GFP_KERNEL);
if (!group_master_cfg) {
iommu_group_put(group);
goto out;
}
memcpy(group_master_cfg, cfg, sizeof(*group_master_cfg));
iommu_group_set_iommudata(group, group_master_cfg,
apple_dart_release_group);