diff mbox series

[02/12] PCI/switchtec: Fix vep_vector_number ioread width

Message ID 20200106190337.2428-3-logang@deltatee.com (mailing list archive)
State Accepted, archived
Headers show
Series Switchtec Fixes and Gen4 Support | expand

Commit Message

Logan Gunthorpe Jan. 6, 2020, 7:03 p.m. UTC 
vep_vector_number is actually a 16 bit register which should be read with
ioread16() instead of ioread32().

Fixes: 080b47def5e5 ("MicroSemi Switchtec management interface driver")
Reported-by: Doug Meyer <dmeyer@gigaio.com>
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
---
 drivers/pci/switch/switchtec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c
index 2bf670977b9c..9c3ad09d3022 100644
--- a/drivers/pci/switch/switchtec.c
+++ b/drivers/pci/switch/switchtec.c
@@ -1276,7 +1276,7 @@  static int switchtec_init_isr(struct switchtec_dev *stdev)
 	if (nvecs < 0)
 		return nvecs;
 
-	event_irq = ioread32(&stdev->mmio_part_cfg->vep_vector_number);
+	event_irq = ioread16(&stdev->mmio_part_cfg->vep_vector_number);
 	if (event_irq < 0 || event_irq >= nvecs)
 		return -EFAULT;