This is a note to let you know that I've just added the patch titled
ata: pata_isapnp: Add missing error check for devm_ioport_map()
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ata-pata_isapnp-add-missing-error-check-for-devm_iop.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 39ef237ac7b226ded59065ca1aaaee540778cd57
Author: Chen Ni <nichen@xxxxxxxxxxx>
Date: Tue Oct 31 04:00:07 2023 +0000
ata: pata_isapnp: Add missing error check for devm_ioport_map()
[ Upstream commit a6925165ea82b7765269ddd8dcad57c731aa00de ]
Add missing error return check for devm_ioport_map() and return the
error if this function call fails.
Fixes: 0d5ff566779f ("libata: convert to iomap")
Signed-off-by: Chen Ni <nichen@xxxxxxxxxxx>
Reviewed-by: Sergey Shtylyov <s.shtylyov@xxxxxx>
Signed-off-by: Damien Le Moal <dlemoal@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/ata/pata_isapnp.c b/drivers/ata/pata_isapnp.c
index 994f168b54a80..4ffbc2a63f8f5 100644
--- a/drivers/ata/pata_isapnp.c
+++ b/drivers/ata/pata_isapnp.c
@@ -81,6 +81,9 @@ static int isapnp_init_one(struct pnp_dev *idev, const struct pnp_device_id *dev
if (pnp_port_valid(idev, 1)) {
ctl_addr = devm_ioport_map(&idev->dev,
pnp_port_start(idev, 1), 1);
+ if (!ctl_addr)
+ return -ENOMEM;
+
ap->ioaddr.altstatus_addr = ctl_addr;
ap->ioaddr.ctl_addr = ctl_addr;
ap->ops = &isapnp_port_ops;
