Commit bfdda8c9 authored Oct 31, 2023 by Chen Ni Committed by Greg Kroah-Hartman Dec 08, 2023

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: 0d5ff566 ("libata: convert to iomap")
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent 9d980808

drivers/ata/pata_isapnp.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -82,6 +82,9 @@ 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;