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 <khali@linux-fr.org>

diff --git a/drivers/i2c/busses/i2c-amd756.c b/drivers/i2c/busses/i2c-amd756.c
index f7d6fe9c49baa3724c38463448acbcb5a4384cb4..8f0b90ef8c76fe9e76e1c2101d841004690963e4 100644 (file)
--- 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 a7c59908c457cbeb23937904dc6d6a76a05e060c..5b4ad86ca166f2bdcec9e63f8fa02947f2bfd83c 100644 (file)
--- 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 9d2c5adf5d4fbbcf06c8baf68d98cb01c5b93706..55edcfe5b851abe5676d1d3c857eed93c233e458 100644 (file)
--- 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 9f6b8e0f8632af44c2eb4c49667277e0656bec7b..dba6eb053e2facc6f1393abe41ac5b296b9127aa 100644 (file)
--- 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 a782c7a08f9e1256d40430bf15d050d30791375b..d26a972aacaad8b0eff3f850b46fa5ed418d0440 100644 (file)
--- 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 8295885b2fdb9417c18f19becc3a3ce045240d18..1649963b00dcfef12861868dfa5715547f9bfc7a 100644 (file)
--- 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 54d810a4d00f86aa3ff687294e235b47a0a4a7cf..e4b1543015af9cb5eeb44f40a676918c70fb83e8 100644 (file)
--- 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",