nios2: fix __get_user()
a) should not leave crap on fault b) should _not_ require access_ok() in any cases. Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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@ -142,7 +142,7 @@ extern long strnlen_user(const char __user *s, long n);
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#define __get_user_unknown(val, size, ptr, err) do { \
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err = 0; \
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if (copy_from_user(&(val), ptr, size)) { \
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if (__copy_from_user(&(val), ptr, size)) { \
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err = -EFAULT; \
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} \
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} while (0)
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@ -169,7 +169,7 @@ do { \
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({ \
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long __gu_err = -EFAULT; \
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const __typeof__(*(ptr)) __user *__gu_ptr = (ptr); \
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unsigned long __gu_val; \
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unsigned long __gu_val = 0; \
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__get_user_common(__gu_val, sizeof(*(ptr)), __gu_ptr, __gu_err);\
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(x) = (__force __typeof__(x))__gu_val; \
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__gu_err; \
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