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mtd: maps: vmu-flash: fix fault in unaligned fixup

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Use kzalloc_obj() / kzalloc_objs() to allocate the memcard structs,
instead of kmalloc_obj() / kmalloc_objs() to prevent access to
uninitialized data.

Fixes runtime error: Fault in unaligned fixup: 0000 [#1] at
mtd_get_fact_prot_info.

Fixes: 47a72688fa ("mtd: flash mapping support for Dreamcast VMU.")
Cc: stable@vger.kernel.org
Signed-off-by: Florian Fuchs <fuchsfl@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
This commit is contained in:
Florian Fuchs 2026-05-18 13:45:20 +02:00 committed by Miquel Raynal
parent f4aeb151b8
commit 79d1661502
1 changed files with 3 additions and 3 deletions
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6
drivers/mtd/maps/vmu-flash.c
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@ -609,7 +609,7 @@ static int vmu_connect(struct maple_device *mdev)
basic_flash_data = be32_to_cpu(mdev->devinfo.function_data[c - 1]);
card = kmalloc_obj(struct memcard);
card = kzalloc_obj(struct memcard);
if (!card) {
error = -ENOMEM;
goto fail_nomem;
@ -627,13 +627,13 @@ static int vmu_connect(struct maple_device *mdev)
* Not sure there are actually any multi-partition devices in the
* real world, but the hardware supports them, so, so will we
*/
card->parts = kmalloc_objs(struct vmupart, card->partitions);
card->parts = kzalloc_objs(struct vmupart, card->partitions);
if (!card->parts) {
error = -ENOMEM;
goto fail_partitions;
}
card->mtd = kmalloc_objs(struct mtd_info, card->partitions);
card->mtd = kzalloc_objs(struct mtd_info, card->partitions);
if (!card->mtd) {
error = -ENOMEM;
goto fail_mtd_info;