lkml.org 
[lkml]   [2020]   [Feb]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH AUTOSEL 5.4 051/459] PCI/switchtec: Fix vep_vector_number ioread width
    Date
    From: Logan Gunthorpe <logang@deltatee.com>

    [ Upstream commit 9375646b4cf03aee81bc6c305aa18cc80b682796 ]

    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>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/pci/switch/switchtec.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c
    index 465d6afd826e8..efa6abc86995f 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;

    --
    2.20.1
    \
     
     \ /
      Last update: 2020-02-14 17:04    [W:4.063 / U:0.008 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site