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authorStafford Horne <shorne@gmail.com>2020-08-04 10:41:54 +0900
committerStafford Horne <shorne@gmail.com>2020-08-09 07:57:21 +0900
commit55b2662ec665cc8b592809a011fe807b05370ab8 (patch)
treeabfebce45160da87e2aecb2619feb393694fa4e1 /arch/openrisc
parentd99596645f7d66b94b35650e732a42f4c701e11b (diff)
openrisc: uaccess: Add user address space check to access_ok
Now that __user annotations are fixed for openrisc uaccess api's we can add checking to the access_ok macro. This patch adds the __chk_user_ptr check, on normal builds the added check is a nop. Signed-off-by: Stafford Horne <shorne@gmail.com> Reviewed-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Diffstat (limited to 'arch/openrisc')
-rw-r--r--arch/openrisc/include/asm/uaccess.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/openrisc/include/asm/uaccess.h b/arch/openrisc/include/asm/uaccess.h
index 85a55359b244..7c5892f56765 100644
--- a/arch/openrisc/include/asm/uaccess.h
+++ b/arch/openrisc/include/asm/uaccess.h
@@ -57,6 +57,7 @@ static inline int __range_ok(unsigned long addr, unsigned long size)
#define access_ok(addr, size) \
({ \
+ __chk_user_ptr(addr); \
__range_ok((unsigned long)(addr), (size)); \
})