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| author | Stefan Agner <stefan@agner.ch> | 2017-03-14 13:59:28 -0700 |
|---|---|---|
| committer | Max Krummenacher <max.krummenacher@toradex.com> | 2017-03-15 18:35:51 +0100 |
| commit | 39ac0033f2345ce7b5d8ca4439192407dacb2355 (patch) | |
| tree | 51dc588baa63d31bc406388885f62c1cae068fa3 /arch/parisc/include/asm/uaccess.h | |
| parent | 13f2767f31803754aa883f298737aff866f04628 (diff) | |
| parent | d9e0350d2575a20ee7783427da9bd6b6107eb983 (diff) | |
Merge tag 'v4.1.39' into toradex_vf_4.1-nexttoradex_vf_4.1
Linux 4.1.39
Diffstat (limited to 'arch/parisc/include/asm/uaccess.h')
| -rw-r--r-- | arch/parisc/include/asm/uaccess.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h index 1960b87c1c8b..4ad51465890b 100644 --- a/arch/parisc/include/asm/uaccess.h +++ b/arch/parisc/include/asm/uaccess.h @@ -10,6 +10,7 @@ #include <asm-generic/uaccess-unaligned.h> #include <linux/bug.h> +#include <linux/string.h> #define VERIFY_READ 0 #define VERIFY_WRITE 1 @@ -245,13 +246,14 @@ static inline unsigned long __must_check copy_from_user(void *to, unsigned long n) { int sz = __compiletime_object_size(to); - int ret = -EFAULT; + unsigned long ret = n; if (likely(sz == -1 || !__builtin_constant_p(n) || sz >= n)) ret = __copy_from_user(to, from, n); else copy_from_user_overflow(); - + if (unlikely(ret)) + memset(to + (n - ret), 0, ret); return ret; } |