FAILED: patch "[PATCH] staging: erofs: fix memleak of inode's shared xattr array" failed to apply to 4.19-stable tree

The patch below does not apply to the 4.19-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 3b1b5291f79d040d549d7c746669fc30e8045b9b Mon Sep 17 00:00:00 2001
From: Sheng Yong <[email protected]>
Date: Thu, 14 Feb 2019 14:46:36 +0800
Subject: [PATCH] staging: erofs: fix memleak of inode's shared xattr array

If it fails to read a shared xattr page, the inode's shared xattr array is not freed. The next time the inode's xattr is accessed, the previously allocated array is leaked.

index e748df8d2b44..8c48b0ab31fd 100644
@@ -111,8 +111,11 @@ static int init_inode_xattrs(struct inode *inode)
 
 			it.page = erofs_get_meta_page(sb,
 				++it.blkaddr, S_ISDIR(inode->i_mode));
-			if (IS_ERR(it.page))
+			if (IS_ERR(it.page)) {
+				kfree(vi->xattr_shared_xattrs);
+				vi->xattr_shared_xattrs = NULL;
 				return PTR_ERR(it.page);
+			}
 
 			it.kaddr = kmap_atomic(it.page);
 			atomic_map = true;