Update from upstream with manual merge of Yasunori Goto's

changes to swiotlb.c made in commit 281dd25cdc0d6903929b79183816d151ea626341
since this file has been moved from arch/ia64/lib/swiotlb.c to
lib/swiotlb.c

Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c
index 52ad11328e96..36b6045213ee 100644
--- a/arch/arm/mach-ixp4xx/common.c
+++ b/arch/arm/mach-ixp4xx/common.c
@@ -125,7 +125,8 @@ static int ixp4xx_set_irq_type(unsigned int irq, unsigned int type)
         } else if (type & IRQT_LOW) {
                 int_style = IXP4XX_GPIO_STYLE_ACTIVE_LOW;
                 irq_type = IXP4XX_IRQ_LEVEL;
-        }
+        } else
+                return -EINVAL;
 
         ixp4xx_config_irq(irq, irq_type);
 
@@ -142,6 +143,8 @@ static int ixp4xx_set_irq_type(unsigned int irq, unsigned int type)
 
         /* Set the new style */
         *int_reg |= (int_style << (line * IXP4XX_GPIO_STYLE_SIZE));
+
+        return 0;
 }
 
 static void ixp4xx_irq_mask(unsigned int irq)