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drivers/fpga/dfl-afu-dma-region.c: get rid of pointless access_ok()

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Address is passed to get_user_pages_fast(), which does access_ok().
NB: this is called only from ->ioctl(), and only under USER_DS.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2020-05-07 21:03:04 -04:00
parent c9a4bb4166
commit 83a4f2e704
1 changed files with 0 additions and 4 deletions
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4
drivers/fpga/dfl-afu-dma-region.c
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@ -324,10 +324,6 @@ int afu_dma_map_region(struct dfl_feature_platform_data *pdata,
if (user_addr + length < user_addr)
return -EINVAL;
if (!access_ok((void __user *)(unsigned long)user_addr,
length))
return -EINVAL;
region = kzalloc(sizeof(*region), GFP_KERNEL);
if (!region)
return -ENOMEM;