mountmgr: Move the macOS device access check to the Unix library.

dlls/mountmgr.sys/device.c

@@ -915,13 +915,7 @@ static BOOL get_volume_device_info( struct volume *volume )
     if (!unix_device)
         return FALSE;
 
-#ifdef __APPLE__
-    if (access( unix_device, R_OK ))
-    {
-        WARN("Unable to open %s, not accessible\n", debugstr_a(unix_device));
-        return FALSE;
-    }
-#endif
+    if (MOUNTMGR_CALL( check_device_access, volume->device->unix_device )) return FALSE;
 
     if (!(name = wine_get_dos_file_name( unix_device )))
     {

dlls/mountmgr.sys/unixlib.c

@@ -319,6 +319,15 @@ static NTSTATUS match_unixdev( void *args )
     return !stat( params->device, &st ) && st.st_rdev == params->unix_dev;
 }
 
+static NTSTATUS check_device_access( void *args )
+{
+#ifdef __APPLE__
+    const char *unix_device = args;
+    if (access( unix_device, R_OK )) return STATUS_ACCESS_DENIED;
+#endif
+    return STATUS_SUCCESS;
+}
+
 static NTSTATUS detect_serial_ports( void *args )
 {
     const struct detect_ports_params *params = args;
@@ -434,6 +443,7 @@ const unixlib_entry_t __wine_unix_call_funcs[] =
     get_volume_dos_devices,
     read_volume_file,
     match_unixdev,
+    check_device_access,
     detect_serial_ports,
     detect_parallel_ports,
     set_shell_folder,

dlls/mountmgr.sys/unixlib.h

@@ -145,6 +145,7 @@ enum mountmgr_funcs
     unix_get_volume_dos_devices,
     unix_read_volume_file,
     unix_match_unixdev,
+    unix_check_device_access,
     unix_detect_serial_ports,
     unix_detect_parallel_ports,
     unix_set_shell_folder,