diff --git a/fs/pstore/inode.c b/fs/pstore/inode.c
index a98787bab3e6..3d1f047e4f41 100644
--- a/fs/pstore/inode.c
+++ b/fs/pstore/inode.c
@@ -52,7 +52,7 @@ struct pstore_private {
 	u64	id;
 	int	count;
 	ssize_t	size;
-	char	data[];
+	char    *buf;
 };
 
 struct pstore_ftrace_seq_data {
@@ -63,6 +63,14 @@ struct pstore_ftrace_seq_data {
 
 #define REC_SIZE sizeof(struct pstore_ftrace_record)
 
+static void free_pstore_private(struct pstore_private *private)
+{
+	if (!private)
+		return;
+	kfree(private->buf);
+	kfree(private);
+}
+
 static void *pstore_ftrace_seq_start(struct seq_file *s, loff_t *pos)
 {
 	struct pstore_private *ps = s->private;
@@ -105,7 +113,7 @@ static int pstore_ftrace_seq_show(struct seq_file *s, void *v)
 {
 	struct pstore_private *ps = s->private;
 	struct pstore_ftrace_seq_data *data = v;
-	struct pstore_ftrace_record *rec = (void *)(ps->data + data->off);
+	struct pstore_ftrace_record *rec = (void *)(ps->buf + data->off);
 
 	seq_printf(s, "CPU:%d ts:%llu %08lx  %08lx  %pf <- %pF\n",
 		   pstore_ftrace_decode_cpu(rec),
@@ -143,7 +151,7 @@ static ssize_t pstore_file_read(struct file *file, char __user *userbuf,
 
 	if (ps->type == PSTORE_TYPE_FTRACE)
 		return seq_read(file, userbuf, count, ppos);
-	return simple_read_from_buffer(userbuf, count, ppos, ps->data, ps->size);
+	return simple_read_from_buffer(userbuf, count, ppos, ps->buf, ps->size);
 }
 
 static int pstore_file_open(struct inode *inode, struct file *file)
@@ -221,7 +229,7 @@ static void pstore_evict_inode(struct inode *inode)
 		spin_lock_irqsave(&allpstore_lock, flags);
 		list_del(&p->list);
 		spin_unlock_irqrestore(&allpstore_lock, flags);
-		kfree(p);
+		free_pstore_private(p);
 	}
 }
 
@@ -332,7 +340,7 @@ int pstore_mkfile(struct pstore_record *record)
 		goto fail;
 	inode->i_mode = S_IFREG | 0444;
 	inode->i_fop = &pstore_file_operations;
-	private = kmalloc(sizeof *private + size, GFP_KERNEL);
+	private = kzalloc(sizeof(*private), GFP_KERNEL);
 	if (!private)
 		goto fail_alloc;
 	private->type = record->type;
@@ -394,7 +402,7 @@ int pstore_mkfile(struct pstore_record *record)
 	if (!dentry)
 		goto fail_lockedalloc;
 
-	memcpy(private->data, record->buf, size);
+	private->buf = record->buf;
 	inode->i_size = private->size = size;
 
 	inode->i_private = private;
@@ -414,7 +422,7 @@ int pstore_mkfile(struct pstore_record *record)
 
 fail_lockedalloc:
 	inode_unlock(d_inode(root));
-	kfree(private);
+	free_pstore_private(private);
 fail_alloc:
 	iput(inode);
 
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index c0d401e732e6..d897e2f11b6a 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -828,14 +828,22 @@ void pstore_get_records(int quiet)
 	if (psi->open && psi->open(psi))
 		goto out;
 
+	/*
+	 * Backend callback read() allocates record.buf. decompress_record()
+	 * may reallocate record.buf. On success, pstore_mkfile() will keep
+	 * the record.buf, so free it only on failure.
+	 */
 	while ((record.size = psi->read(&record)) > 0) {
 		decompress_record(&record);
 		rc = pstore_mkfile(&record);
+		if (rc) {
+			/* pstore_mkfile() did not take buf, so free it. */
+			kfree(record.buf);
+			if (rc != -EEXIST || !quiet)
+				failed++;
+		}
 
-		if (rc && (rc != -EEXIST || !quiet))
-			failed++;
-
-		kfree(record.buf);
+		/* Reset for next record. */
 		memset(&record, 0, sizeof(record));
 		record.psi = psi;
 	}