diff options
Diffstat (limited to 'bsd-user')
| -rw-r--r-- | bsd-user/qemu.h | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/bsd-user/qemu.h b/bsd-user/qemu.h index 2494d9209d..8d3767964d 100644 --- a/bsd-user/qemu.h +++ b/bsd-user/qemu.h @@ -358,16 +358,18 @@ abi_long copy_to_user(abi_ulong gaddr, void *hptr, size_t len); static inline void *lock_user(int type, abi_ulong guest_addr, long len, int copy) { - if (!access_ok(type, guest_addr, len)) + if (!access_ok(type, guest_addr, len)) { return NULL; + } #ifdef DEBUG_REMAP { void *addr; addr = g_malloc(len); - if (copy) + if (copy) { memcpy(addr, g2h_untagged(guest_addr), len); - else + } else { memset(addr, 0, len); + } return addr; } #else @@ -384,12 +386,15 @@ static inline void unlock_user(void *host_ptr, abi_ulong guest_addr, { #ifdef DEBUG_REMAP - if (!host_ptr) + if (!host_ptr) { return; - if (host_ptr == g2h_untagged(guest_addr)) + } + if (host_ptr == g2h_untagged(guest_addr)) { return; - if (len > 0) + } + if (len > 0) { memcpy(g2h_untagged(guest_addr), host_ptr, len); + } g_free(host_ptr); #endif } @@ -405,8 +410,9 @@ static inline void *lock_user_string(abi_ulong guest_addr) { abi_long len; len = target_strlen(guest_addr); - if (len < 0) + if (len < 0) { return NULL; + } return lock_user(VERIFY_READ, guest_addr, (long)(len + 1), 1); } |