1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/i2c/busses/i2c-sis5595.c b/drivers/i2c/busses/i2c-sis5595.c
index f76944b384f5..3c8e0e1bd24f 100644
--- a/drivers/i2c/busses/i2c-sis5595.c
+++ b/drivers/i2c/busses/i2c-sis5595.c
@@ -62,6 +62,7 @@
 #include <linux/ioport.h>
 #include <linux/init.h>
 #include <linux/i2c.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 
 static int blacklist[] = {
@@ -174,6 +175,11 @@ static int sis5595_setup(struct pci_dev *SIS5595_dev)
 
         /* NB: We grab just the two SMBus registers here, but this may still
          * interfere with ACPI :-(  */
+        retval = acpi_check_region(sis5595_base + SMB_INDEX, 2,
+                                   sis5595_driver.name);
+        if (retval)
+                return retval;
+
         if (!request_region(sis5595_base + SMB_INDEX, 2,
                             sis5595_driver.name)) {
                 dev_err(&SIS5595_dev->dev, "SMBus registers 0x%04x-0x%04x already in use!\n",