mtd: rawnand: cadence: fix DMA device NULL pointer dereference

Browse source

commit 5c56bf214a upstream.

The DMA device pointer `dma_dev` was being dereferenced before ensuring
that `cdns_ctrl->dmac` is properly initialized.

Move the assignment of `dma_dev` after successfully acquiring the DMA
channel to ensure the pointer is valid before use.

Fixes: d76d22b509 ("mtd: rawnand: cadence: use dma_map_resource for sdma address")
Cc: stable@vger.kernel.org
Signed-off-by: Niravkumar L Rabara <niravkumarlaxmidas.rabara@altera.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Niravkumar L Rabara 2025-10-23 11:32:01 +08:00 • committed by Greg Kroah-Hartman

parent de9dc8cbee

commit 9c58c64ec4

1 changed files with 2 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

3

drivers/mtd/nand/raw/cadence-nand-controller.c

View file