Merge change 11205

* changes:
  Fix bug of mmc.c not checking read_file result. This bug causes segment fault when reading name node of SDIO mmc device's /sys file, which is not existed at all.
diff --git a/vold/blkdev.c b/vold/blkdev.c
index 0a15a73..2c5681a 100644
--- a/vold/blkdev.c
+++ b/vold/blkdev.c
@@ -219,7 +219,7 @@
 
     /* Create device nodes */
     char nodepath[255];
-    mode_t mode = 0666 | S_IFBLK;
+    mode_t mode = 0660 | S_IFBLK;
     dev_t dev = (major << 8) | minor;
 
     sprintf(nodepath, "%s/vold/%d:%d", DEVPATH, major, minor);