linux-user: Fix sub-host-page mmap

We cannot skip over the_end1 to the_end, because we fail to
record the validity of the guest page with the interval tree.
Remove "the_end" and rename "the_end1" to "the_end".

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-19-richard.henderson@linaro.org>

linux-user/mmap.c

@@ -643,7 +643,7 @@ static abi_long target_mmap__locked(abi_ulong start, abi_ulong len,
                                target_prot, flags, fd, offset)) {
                     return -1;
                 }
-                goto the_end1;
+                goto the_end;
             }
             if (!mmap_frag(real_start, start,
                            real_start + host_page_size - 1,
@@ -690,7 +690,7 @@ static abi_long target_mmap__locked(abi_ulong start, abi_ulong len,
             passthrough_last = real_last;
         }
     }
- the_end1:
+ the_end:
     if (flags & MAP_ANONYMOUS) {
         page_flags |= PAGE_ANON;
     }
@@ -708,7 +708,6 @@ static abi_long target_mmap__locked(abi_ulong start, abi_ulong len,
         }
     }
     shm_region_rm_complete(start, last);
- the_end:
     trace_target_mmap_complete(start);
     if (qemu_loglevel_mask(CPU_LOG_PAGE)) {
         FILE *f = qemu_log_trylock();