[PATCH 3/3] mtd: maps: vmu-flash: Fix NULL pointer dereference in initialization

Florian Fuchs posted 3 patches 2 weeks ago
[PATCH 3/3] mtd: maps: vmu-flash: Fix NULL pointer dereference in initialization
Posted by Florian Fuchs 2 weeks ago
The mtd_info contains a struct device, which must be linked to its
parent. Without this, the initialization of the MTD fails with a NULL
pointer dereference.

Signed-off-by: Florian Fuchs <fuchsfl@gmail.com>
---
 drivers/mtd/maps/vmu-flash.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mtd/maps/vmu-flash.c b/drivers/mtd/maps/vmu-flash.c
index d0793f1b0fac..153ba6f8f769 100644
--- a/drivers/mtd/maps/vmu-flash.c
+++ b/drivers/mtd/maps/vmu-flash.c
@@ -547,6 +547,7 @@ static void vmu_queryblocks(struct mapleq *mq)
 	mpart->partition = card->partition;
 	mtd_cur->priv = mpart;
 	mtd_cur->owner = THIS_MODULE;
+	mtd_cur->dev.parent = &mdev->dev;
 
 	pcache = kzalloc(sizeof(struct vmu_cache), GFP_KERNEL);
 	if (!pcache)
-- 
2.43.0