Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-2.12-pull-request' into staging

# gpg: Signature made Tue 23 Jan 2018 14:47:41 GMT
# gpg:                using RSA key 0xF30C38BD3F2FBE3C
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>"
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>"
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>"
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/linux-user-for-2.12-pull-request:
  linux-user: implement renameat2
  page_unprotect(): handle calls to pages that are PAGE_WRITE
  linux-user: Propagate siginfo_t through to handle_cpu_signal()
  linux-user: remove nmi.c and fw-path-provider.c
  linux-user: Add getcpu() support
  linux-user: Add AT_SECURE auxval
  linux-user: Fix sched_get/setaffinity conversion
  linux-user/mmap.c: Avoid choosing NULL as start address
  linux-user: Translate flags argument to dup3 syscall
  linux-user: Don't use CMSG_ALIGN(sizeof struct cmsghdr)
  linux-user: Fix length calculations in host_to_target_cmsg()
  linux-user: wrap fork() in a start/end exclusive section
  linux-user: Fix locking order in fork_start()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index 4888f53139..0fbfd6dff2 100644
--- a/linux-user/mmap.c
+++ b/linux-user/mmap.c
@@ -234,7 +234,7 @@ static abi_ulong mmap_find_vma_reserved(abi_ulong start, abi_ulong size)
         if (prot) {
             end_addr = addr;
         }
-        if (addr + size == end_addr) {
+        if (addr && addr + size == end_addr) {
             break;
         }
         addr -= qemu_host_page_size;