Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6

* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
  i2c-sibyte: Fix an error path
  i2c: Driver IDs are optional
  i2c: Spelling fixes
  i2c-omap: Fix NULL pointer dereferencing

6 files changed, 13 insertions, 6 deletions

diff --git a/drivers/i2c/busses/i2c-at91.c b/drivers/i2c/busses/i2c-at91.c
index 9c8b6d5eaec..c09b036913b 100644
--- a/drivers/i2c/busses/i2c-at91.c
+++ b/drivers/i2c/busses/i2c-at91.c
@@ -135,7 +135,7 @@ static int xfer_write(struct i2c_adapter *adap, unsigned char *buf, int length)
  * Generic i2c master transfer entrypoint.
  *
  * Note: We do not use Atmel's feature of storing the "internal device address".
- * Instead the "internal device address" has to be written using a seperate
+ * Instead the "internal device address" has to be written using a separate
  * i2c message.
  * http://lists.arm.linux.org.uk/pipermail/linux-arm-kernel/2004-September/024411.html
  */
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index cb55cf2ba1e..f2552b19ea6 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -619,13 +619,13 @@ omap_i2c_probe(struct platform_device *pdev)
 err_free_irq:
 	free_irq(dev->irq, dev);
 err_unuse_clocks:
+	omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, 0);
 	omap_i2c_disable_clocks(dev);
 	omap_i2c_put_clocks(dev);
 err_free_mem:
 	platform_set_drvdata(pdev, NULL);
 	kfree(dev);
 err_release_region:
-	omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, 0);
 	release_mem_region(mem->start, (mem->end - mem->start) + 1);
 
 	return r;
diff --git a/drivers/i2c/busses/i2c-powermac.c b/drivers/i2c/busses/i2c-powermac.c
index 0ab4f2627c2..7813127649a 100644
--- a/drivers/i2c/busses/i2c-powermac.c
+++ b/drivers/i2c/busses/i2c-powermac.c
@@ -94,7 +94,7 @@ static s32 i2c_powermac_smbus_xfer(	struct i2c_adapter*	adap,
 	    	break;
 
 	/* Note that these are broken vs. the expected smbus API where
-	 * on reads, the lenght is actually returned from the function,
+	 * on reads, the length is actually returned from the function,
 	 * but I think the current API makes no sense and I don't want
 	 * any driver that I haven't verified for correctness to go
 	 * anywhere near a pmac i2c bus anyway ...
diff --git a/drivers/i2c/busses/i2c-sibyte.c b/drivers/i2c/busses/i2c-sibyte.c
index 0ca599d3b40..503a134ec80 100644
--- a/drivers/i2c/busses/i2c-sibyte.c
+++ b/drivers/i2c/busses/i2c-sibyte.c
@@ -200,11 +200,14 @@ static struct i2c_adapter sibyte_board_adapter[2] = {
 
 static int __init i2c_sibyte_init(void)
 {
-	printk("i2c-swarm.o: i2c SMBus adapter module for SiByte board\n");
+	pr_info("i2c-sibyte: i2c SMBus adapter module for SiByte board\n");
 	if (i2c_sibyte_add_bus(&sibyte_board_adapter[0], K_SMB_FREQ_100KHZ) < 0)
 		return -ENODEV;
-	if (i2c_sibyte_add_bus(&sibyte_board_adapter[1], K_SMB_FREQ_400KHZ) < 0)
+	if (i2c_sibyte_add_bus(&sibyte_board_adapter[1],
+			       K_SMB_FREQ_400KHZ) < 0) {
+		i2c_del_adapter(&sibyte_board_adapter[0]);
 		return -ENODEV;
+	}
 	return 0;
 }
 
diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
index c21ae20ae36..df540d5dfaf 100644
--- a/drivers/i2c/i2c-dev.c
+++ b/drivers/i2c/i2c-dev.c
@@ -184,7 +184,7 @@ static ssize_t i2cdev_write (struct file *file, const char __user *buf, size_t c
 
 /* This address checking function differs from the one in i2c-core
    in that it considers an address with a registered device, but no
-   bounded driver, as NOT busy. */
+   bound driver, as NOT busy. */
 static int i2cdev_check_addr(struct i2c_adapter *adapter, unsigned int addr)
 {
 	struct list_head *item;
diff --git a/include/linux/i2c-id.h b/include/linux/i2c-id.h
index 88c81403eb3..e18017d4575 100644
--- a/include/linux/i2c-id.h
+++ b/include/linux/i2c-id.h
@@ -23,6 +23,10 @@
 #ifndef LINUX_I2C_ID_H
 #define LINUX_I2C_ID_H
 
+/* Please note that I2C driver IDs are optional. They are only needed if a
+   legacy chip driver needs to identify a bus or a bus driver needs to
+   identify a legacy client. If you don't need them, just don't set them. */
+
 /*
  * ---- Driver types -----------------------------------------------------
  */