From 18669eabde2ff5fc446e72e043f0539059763438 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Sun, 4 Oct 2009 22:53:45 +0200 Subject: [PATCH] i2c: Hide probe errors caused by ACPI resource conflicts When an ACPI resource conflict is detected, error messages are already printed by ACPI. There's no point in causing the driver core to print more error messages, so return one of the error codes for which no message is printed. This fixes bug #14293: http://bugzilla.kernel.org/show_bug.cgi?id=14293 Signed-off-by: Jean Delvare --- drivers/i2c/busses/i2c-amd756.c | 2 +- drivers/i2c/busses/i2c-amd8111.c | 4 +++- drivers/i2c/busses/i2c-i801.c | 4 +++- drivers/i2c/busses/i2c-isch.c | 2 +- drivers/i2c/busses/i2c-piix4.c | 4 ++-- drivers/i2c/busses/i2c-sis96x.c | 2 +- drivers/i2c/busses/i2c-viapro.c | 2 +- 7 files changed, 12 insertions(+), 8 deletions(-) diff --git a/drivers/i2c/busses/i2c-amd756.c b/drivers/i2c/busses/i2c-amd756.c index f7d6fe9c49baa..8f0b90ef8c76f 100644 --- a/drivers/i2c/busses/i2c-amd756.c +++ b/drivers/i2c/busses/i2c-amd756.c @@ -364,7 +364,7 @@ static int __devinit amd756_probe(struct pci_dev *pdev, error = acpi_check_region(amd756_ioport, SMB_IOSIZE, amd756_driver.name); if (error) - return error; + return -ENODEV; if (!request_region(amd756_ioport, SMB_IOSIZE, amd756_driver.name)) { dev_err(&pdev->dev, "SMB region 0x%x already in use!\n", diff --git a/drivers/i2c/busses/i2c-amd8111.c b/drivers/i2c/busses/i2c-amd8111.c index a7c59908c457c..5b4ad86ca166f 100644 --- a/drivers/i2c/busses/i2c-amd8111.c +++ b/drivers/i2c/busses/i2c-amd8111.c @@ -376,8 +376,10 @@ static int __devinit amd8111_probe(struct pci_dev *dev, smbus->size = pci_resource_len(dev, 0); error = acpi_check_resource_conflict(&dev->resource[0]); - if (error) + if (error) { + error = -ENODEV; goto out_kfree; + } if (!request_region(smbus->base, smbus->size, amd8111_driver.name)) { error = -EBUSY; diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 9d2c5adf5d4fb..55edcfe5b851a 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -732,8 +732,10 @@ static int __devinit i801_probe(struct pci_dev *dev, const struct pci_device_id } err = acpi_check_resource_conflict(&dev->resource[SMBBAR]); - if (err) + if (err) { + err = -ENODEV; goto exit; + } err = pci_request_region(dev, SMBBAR, i801_driver.name); if (err) { diff --git a/drivers/i2c/busses/i2c-isch.c b/drivers/i2c/busses/i2c-isch.c index 9f6b8e0f8632a..dba6eb053e2fa 100644 --- a/drivers/i2c/busses/i2c-isch.c +++ b/drivers/i2c/busses/i2c-isch.c @@ -281,7 +281,7 @@ static int __devinit sch_probe(struct pci_dev *dev, return -ENODEV; } if (acpi_check_region(sch_smba, SMBIOSIZE, sch_driver.name)) - return -EBUSY; + return -ENODEV; if (!request_region(sch_smba, SMBIOSIZE, sch_driver.name)) { dev_err(&dev->dev, "SMBus region 0x%x already in use!\n", sch_smba); diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c index a782c7a08f9e1..d26a972aacaad 100644 --- a/drivers/i2c/busses/i2c-piix4.c +++ b/drivers/i2c/busses/i2c-piix4.c @@ -169,7 +169,7 @@ static int __devinit piix4_setup(struct pci_dev *PIIX4_dev, } if (acpi_check_region(piix4_smba, SMBIOSIZE, piix4_driver.name)) - return -EBUSY; + return -ENODEV; if (!request_region(piix4_smba, SMBIOSIZE, piix4_driver.name)) { dev_err(&PIIX4_dev->dev, "SMBus region 0x%x already in use!\n", @@ -260,7 +260,7 @@ static int __devinit piix4_setup_sb800(struct pci_dev *PIIX4_dev, piix4_smba = ((smba_en_hi << 8) | smba_en_lo) & 0xffe0; if (acpi_check_region(piix4_smba, SMBIOSIZE, piix4_driver.name)) - return -EBUSY; + return -ENODEV; if (!request_region(piix4_smba, SMBIOSIZE, piix4_driver.name)) { dev_err(&PIIX4_dev->dev, "SMBus region 0x%x already in use!\n", diff --git a/drivers/i2c/busses/i2c-sis96x.c b/drivers/i2c/busses/i2c-sis96x.c index 8295885b2fdb9..1649963b00dcf 100644 --- a/drivers/i2c/busses/i2c-sis96x.c +++ b/drivers/i2c/busses/i2c-sis96x.c @@ -280,7 +280,7 @@ static int __devinit sis96x_probe(struct pci_dev *dev, retval = acpi_check_resource_conflict(&dev->resource[SIS96x_BAR]); if (retval) - return retval; + return -ENODEV; /* Everything is happy, let's grab the memory and set things up. */ if (!request_region(sis96x_smbus_base, SMB_IOSIZE, diff --git a/drivers/i2c/busses/i2c-viapro.c b/drivers/i2c/busses/i2c-viapro.c index 54d810a4d00f8..e4b1543015af9 100644 --- a/drivers/i2c/busses/i2c-viapro.c +++ b/drivers/i2c/busses/i2c-viapro.c @@ -365,7 +365,7 @@ static int __devinit vt596_probe(struct pci_dev *pdev, found: error = acpi_check_region(vt596_smba, 8, vt596_driver.name); if (error) - return error; + return -ENODEV; if (!request_region(vt596_smba, 8, vt596_driver.name)) { dev_err(&pdev->dev, "SMBus region 0x%x already in use!\n", -- 2.30.2