diff options
Diffstat (limited to 'arch/s390/lib/uaccess_mvcos.c')
| -rw-r--r-- | arch/s390/lib/uaccess_mvcos.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/lib/uaccess_mvcos.c b/arch/s390/lib/uaccess_mvcos.c index 7f3eb3d56024..1829742bf479 100644 --- a/arch/s390/lib/uaccess_mvcos.c +++ b/arch/s390/lib/uaccess_mvcos.c @@ -184,6 +184,8 @@ static size_t strncpy_from_user_mvcos(size_t count, const char __user *src, { size_t done, len, offset, len_str; + if (unlikely(!count)) + return 0; done = 0; do { offset = (size_t)src & ~PAGE_MASK; |