Signed-off-by: Sascha Hauer <s.ha...@pengutronix.de>
---
drivers/i2c/i2c.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/i2c/i2c.c b/drivers/i2c/i2c.c
index 53a11fe..ddf0082 100644
--- a/drivers/i2c/i2c.c
+++ b/drivers/i2c/i2c.c
@@ -384,8 +384,17 @@ int i2c_add_numbered_adapter(struct i2c_adapter *adapter)
{
int ret;
- if (i2c_get_adapter(adapter->nr))
- return -EBUSY;
+ if (adapter->nr < 0) {
+ int nr;
+
+ for (nr = 0;; nr++)
+ if (!i2c_get_adapter(nr))
+ break;
+ adapter->nr = nr;
+ } else {
+ if (i2c_get_adapter(adapter->nr))
+ return -EBUSY;
+ }
adapter->dev.id = adapter->nr;
strcpy(adapter->dev.name, "i2c");
--
1.8.2.rc2
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