Commit 87492590 authored by Yang Shen's avatar Yang Shen Committed by JangShui Yang
Browse files

uacce: add error number for the unsupported mremap 

driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/IB9H0P


CVE: NA

----------------------------------------------------------------------

Since the driver doesn't support the mremap, add an error number to
show users the fail.

Signed-off-by: default avatarYang Shen <shenyang39@huawei.com>
Signed-off-by: default avatarJiangShui Yang <yangjiangshui@h-partners.com>
parent 01f9633b

drivers/misc/uacce/uacce.c

+6 −0
Original line number Diff line number Diff line
@@ -392,8 +392,14 @@ static void uacce_vma_close(struct vm_area_struct *vma) 
	}

}



static int uacce_vma_mremap(struct vm_area_struct *area)

{

	return -EPERM;

}



static const struct vm_operations_struct uacce_vm_ops = {

	.close = uacce_vma_close,

	.mremap = uacce_vma_mremap,

};



static int get_sort_base(struct uacce_dma_slice *list, int low, int high,