From: alvin_liang <alvin_liang@htc.com>
Date: Mon, 19 Sep 2016 08:59:12 +0000 (+0800)
Subject: ANDROID: sdcardfs: fix external storage exporting incorrect uid
X-Git-Tag: firefly_0821_release~176^2~5^2~23
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=48a94f81ee47b2bb061f94f7ec6e62e30d4a7c21;p=firefly-linux-kernel-4.4.55.git

ANDROID: sdcardfs: fix external storage exporting incorrect uid

Symptom: App cannot write into per-app folder
Root Cause: sdcardfs exports incorrect uid
Solution: fix uid
Project: All
Note:
Test done by RD: passed

Change-Id: Iff64f6f40ba4c679f07f4426d3db6e6d0db7e3ca
---

diff --git a/fs/sdcardfs/main.c b/fs/sdcardfs/main.c
index 6d526bf3d956..2decea3d1e3e 100644
--- a/fs/sdcardfs/main.c
+++ b/fs/sdcardfs/main.c
@@ -274,7 +274,7 @@ static int sdcardfs_read_super(struct super_block *sb, const char *dev_name,
 					sb_info->options.fs_low_uid,
 					sb_info->options.fs_low_gid, 00755);*/
 	} else {
-		setup_derived_state(sb->s_root->d_inode, PERM_ROOT, sb_info->options.fs_low_uid, AID_ROOT, false, sb->s_root->d_inode);
+		setup_derived_state(d_inode(sb->s_root), PERM_ROOT, sb_info->options.fs_user_id, AID_ROOT, false, d_inode(sb->s_root));
 		snprintf(sb_info->obbpath_s, PATH_MAX, "%s/Android/obb", dev_name);
 	}
 	fix_derived_permission(sb->s_root->d_inode);