ERROR: space required before the open parenthesis '('

Signed-off-by: Ran Sun <sunran001@208suo.com>
---
  arch/x86/kernel/apic/msi.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c
index 35d5b8fb18ef..cd565f253dcd 100644
--- a/arch/x86/kernel/apic/msi.c
+++ b/arch/x86/kernel/apic/msi.c
@@ -227,7 +227,7 @@ static bool x86_init_dev_msi_info(struct device 
*dev, struct irq_domain *domain,
  	}

  	/* Is the target supported? */
-	switch(info->bus_token) {
+	switch (info->bus_token) {
  	case DOMAIN_BUS_PCI_DEVICE_MSI:
  	case DOMAIN_BUS_PCI_DEVICE_MSIX:
  		break;