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authorLogan Gunthorpe <logang@deltatee.com>2020-01-06 12:03:27 -0700
committerBjorn Helgaas <bhelgaas@google.com>2020-01-08 15:42:57 -0600
commit9375646b4cf03aee81bc6c305aa18cc80b682796 (patch)
treef980c923f2014e57090076568fb12fed8a459c44 /drivers/pci
parentaa82130a22f77c1aa5794703730304d035a0c1f4 (diff)
PCI/switchtec: Fix vep_vector_number ioread width
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") Link: https://lore.kernel.org/r/20200106190337.2428-3-logang@deltatee.com Reported-by: Doug Meyer <dmeyer@gigaio.com> Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/switch/switchtec.c2
1 files changed, 1 insertions, 1 deletions
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;