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| author | Kevin Hilman <khilman@linaro.org> | 2015-06-16 15:29:36 -0700 |
|---|---|---|
| committer | Kevin Hilman <khilman@linaro.org> | 2015-06-16 15:29:36 -0700 |
| commit | b0477f5f8ec85bf8a82f6aa6eee308d72c418032 (patch) | |
| tree | d520be10a261f418dbf4539f1d2b5d48d74ba0d3 /lib | |
| parent | 13a29d9ad242f0bf3b31afe812c81558d54892de (diff) | |
| parent | 9a004a75a3305fbd3c253f38cd0788164c4fbd56 (diff) | |
Merge branch 'linux-linaro-lsk-v3.18' into linux-linaro-lsk-v3.18-android
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/string.c | 2 | ||||
| -rw-r--r-- | lib/strnlen_user.c | 3 |
2 files changed, 3 insertions, 2 deletions
diff --git a/lib/string.c b/lib/string.c index 10063300b830..643b0a90802c 100644 --- a/lib/string.c +++ b/lib/string.c @@ -610,7 +610,7 @@ EXPORT_SYMBOL(memset); void memzero_explicit(void *s, size_t count) { memset(s, 0, count); - OPTIMIZER_HIDE_VAR(s); + barrier(); } EXPORT_SYMBOL(memzero_explicit); diff --git a/lib/strnlen_user.c b/lib/strnlen_user.c index a28df5206d95..11649615c505 100644 --- a/lib/strnlen_user.c +++ b/lib/strnlen_user.c @@ -57,7 +57,8 @@ static inline long do_strnlen_user(const char __user *src, unsigned long count, return res + find_zero(data) + 1 - align; } res += sizeof(unsigned long); - if (unlikely(max < sizeof(unsigned long))) + /* We already handled 'unsigned long' bytes. Did we do it all ? */ + if (unlikely(max <= sizeof(unsigned long))) break; max -= sizeof(unsigned long); if (unlikely(__get_user(c,(unsigned long __user *)(src+res)))) |