From 83a4f2e70470be94c582b3d09e774fc9c4470b40 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 7 May 2020 21:03:04 -0400 Subject: 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 --- drivers/fpga/dfl-afu-dma-region.c | 4 ---- 1 file changed, 4 deletions(-) (limited to 'drivers/fpga') 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; -- cgit v1.2.3