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Diffstat (limited to 'drivers/i2c/busses/i2c-sis5595.c')
-rw-r--r--drivers/i2c/busses/i2c-sis5595.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-sis5595.c b/drivers/i2c/busses/i2c-sis5595.c
index f76944b384f..3c8e0e1bd24 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",