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Commit 8f035983 authored by Al Viro's avatar Al Viro
Browse files

blackfin: fix copy_from_user() 



Cc: stable@vger.kernel.org
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 917400ce

arch/blackfin/include/asm/uaccess.h

+5 −4
Original line number Diff line number Diff line
@@ -171,12 +171,13 @@ static inline int bad_user_access_length(void) 
static inline unsigned long __must_check

copy_from_user(void *to, const void __user *from, unsigned long n)

{

	if (access_ok(VERIFY_READ, from, n))

	if (likely(access_ok(VERIFY_READ, from, n))) {

		memcpy(to, (const void __force *)from, n);

	else

		return n;

		return 0;

	}

	memset(to, 0, n);

	return n;

}



static inline unsigned long __must_check

copy_to_user(void __user *to, const void *from, unsigned long n)