Messages in this thread Patch in this message | | | From | Al Viro <> | Subject | [RFC][PATCH 12/14] sh32: convert to csum_and_copy_from_user() | Date | Fri, 27 Mar 2020 23:31:15 +0000 |
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From: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> --- arch/sh/include/asm/checksum_32.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/arch/sh/include/asm/checksum_32.h b/arch/sh/include/asm/checksum_32.h index 36b84cfd3f67..91571a42e44e 100644 --- a/arch/sh/include/asm/checksum_32.h +++ b/arch/sh/include/asm/checksum_32.h @@ -48,12 +48,17 @@ __wsum csum_partial_copy_nocheck(const void *src, void *dst, return csum_partial_copy_generic(src, dst, len, sum, NULL, NULL); } +#define _HAVE_ARCH_COPY_AND_CSUM_FROM_USER static inline -__wsum csum_partial_copy_from_user(const void __user *src, void *dst, +__wsum csum_and_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *err_ptr) { - return csum_partial_copy_generic((__force const void *)src, dst, + if (access_ok(src, len)) + return csum_partial_copy_generic((__force const void *)src, dst, len, sum, err_ptr, NULL); + if (len) + *err_ptr = -EFAULT; + return sum; } /* -- 2.11.0
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