PCI: switchtec: Simplify switchtec_dma_mrpc_isr()

The "ret" variable in switchtec_dma_mrpc_isr() is superfluous.  Remove it
and just return the value.  No functional change intended.

Link: https://lore.kernel.org/r/20221216162126.207863-2-helgaas@kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>

diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c
index 75be4fe..d7ae840 100644 (file)
--- a/drivers/pci/switch/switchtec.c
+++ b/drivers/pci/switch/switchtec.c
@@ -1480,15 +1480,13 @@ static irqreturn_t switchtec_event_isr(int irq, void *dev)
 static irqreturn_t switchtec_dma_mrpc_isr(int irq, void *dev)
 {
        struct switchtec_dev *stdev = dev;
-       irqreturn_t ret = IRQ_NONE;
 
        iowrite32(SWITCHTEC_EVENT_CLEAR |
                  SWITCHTEC_EVENT_EN_IRQ,
                  &stdev->mmio_part_cfg->mrpc_comp_hdr);
        schedule_work(&stdev->mrpc_work);
 
-       ret = IRQ_HANDLED;
-       return ret;
+       return IRQ_HANDLED;
 }
 
 static int switchtec_init_isr(struct switchtec_dev *stdev)