From: Borislav Petkov <petkovbb@googlemail.com>
Subject: [PATCH 6/6] ide-tape: fix mem leak

On failed struct idetape_bh allocation the logic frees only one buffer page
which was the old page-wise strategy. Doing that now would probably leak
2^order-1 pages so fix it to free all and not only the first buffer page.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-tape.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 78a76a0..29870c4 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -1348,7 +1348,7 @@ static struct idetape_bh *ide_tape_kmalloc_buffer(idetape_tape_t *tape,
 		prev_bh = bh;
 		bh = kmalloc(sizeof(struct idetape_bh), GFP_KERNEL);
 		if (!bh) {
-			free_page((unsigned long) b_data);
+			free_pages((unsigned long) b_data, order);
 			goto abort;
 		}
 		bh->b_reqnext = NULL;