From: Gary Bisson <gary.bisson@boundarydevices.com>
Date: Mon, 7 Sep 2015 09:20:07 +0000 (+0200)
Subject: fs: ext4: fix symlink read function
X-Git-Tag: v2015.10-rc4~105
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=9d2f6a9ae70d06e4cead539e57f264c980643f53;p=oweals%2Fu-boot.git

fs: ext4: fix symlink read function

Since last API changes for files >2GB, the read of symlink is broken as
ext4fs_read_file now returns 0 instead of the length of the actual read.

Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>
---

diff --git a/fs/ext4/ext4_common.c b/fs/ext4/ext4_common.c
index 410419e241..727a2f753d 100644
--- a/fs/ext4/ext4_common.c
+++ b/fs/ext4/ext4_common.c
@@ -2046,7 +2046,7 @@ static char *ext4fs_read_symlink(struct ext2fs_node *node)
 		status = ext4fs_read_file(diro, 0,
 					   __le32_to_cpu(diro->inode.size),
 					   symlink, &actread);
-		if (status == 0) {
+		if ((status < 0) || (actread == 0)) {
 			free(symlink);
 			return 0;
 		}