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| author | Al Viro <viro@zeniv.linux.org.uk> | 2020-05-08 03:03:04 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2020-05-29 17:04:56 +0200 |
| commit | 83a4f2e70470be94c582b3d09e774fc9c4470b40 (patch) | |
| tree | 4d8d9357f8889f9c5ed59479a0a58a5354a5615a /drivers/fpga | |
| parent | drivers/fpga/dfl-fme-pr.c: get rid of pointless access_ok() (diff) | |
| download | linux-83a4f2e70470be94c582b3d09e774fc9c4470b40.tar.xz linux-83a4f2e70470be94c582b3d09e774fc9c4470b40.zip | |
drivers/fpga/dfl-afu-dma-region.c: get rid of pointless access_ok()
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>
Diffstat (limited to 'drivers/fpga')
| -rw-r--r-- | drivers/fpga/dfl-afu-dma-region.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/fpga/dfl-afu-dma-region.c b/drivers/fpga/dfl-afu-dma-region.c index 62f924489db5..d902acb36d14 100644 --- a/drivers/fpga/dfl-afu-dma-region.c +++ b/drivers/fpga/dfl-afu-dma-region.c @@ -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; |