diff options
Diffstat (limited to 'drivers/i2c/busses/i2c-ali15x3.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-ali15x3.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-ali15x3.c b/drivers/i2c/busses/i2c-ali15x3.c index e922c3950fcd..a030abd3b32b 100644 --- a/drivers/i2c/busses/i2c-ali15x3.c +++ b/drivers/i2c/busses/i2c-ali15x3.c @@ -68,6 +68,7 @@ #include <linux/delay.h> #include <linux/i2c.h> #include <linux/init.h> +#include <linux/acpi.h> #include <asm/io.h> /* ALI15X3 SMBus address offsets */ @@ -166,6 +167,10 @@ static int ali15x3_setup(struct pci_dev *ALI15X3_dev) if(force_addr) ali15x3_smba = force_addr & ~(ALI15X3_SMB_IOSIZE - 1); + if (acpi_check_region(ali15x3_smba, ALI15X3_SMB_IOSIZE, + ali15x3_driver.name)) + return -EBUSY; + if (!request_region(ali15x3_smba, ALI15X3_SMB_IOSIZE, ali15x3_driver.name)) { dev_err(&ALI15X3_dev->dev, |