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authorJean Delvare <khali@linux-fr.org>2006-07-01 17:12:53 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2006-07-12 15:43:07 -0700
commit8ced8eee8537b52ef5d77e28d7676ce81bc62359 (patch)
treee4d71d931ea64159e5864ccc4ca8008db563e1cf /drivers/i2c
parentc3efacaa68a75049a859cbfd03d52dfdebb7527b (diff)
downloadop-kernel-dev-8ced8eee8537b52ef5d77e28d7676ce81bc62359.zip
op-kernel-dev-8ced8eee8537b52ef5d77e28d7676ce81bc62359.tar.gz
[PATCH] i2c-powermac: Fix master_xfer return value
Fix the value returned by the i2c-powermac's master_xfer method. It should return the number of messages processed successfully, but instead returns the number of data bytes in the first (and only) processed message. Also explicitly mention the master_xfer convention so that future implementations get it right directly. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/busses/i2c-powermac.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/i2c/busses/i2c-powermac.c b/drivers/i2c/busses/i2c-powermac.c
index 2a0b3be..53bb435 100644
--- a/drivers/i2c/busses/i2c-powermac.c
+++ b/drivers/i2c/busses/i2c-powermac.c
@@ -148,8 +148,6 @@ static int i2c_powermac_master_xfer( struct i2c_adapter *adap,
int read;
int addrdir;
- if (num != 1)
- return -EINVAL;
if (msgs->flags & I2C_M_TEN)
return -EINVAL;
read = (msgs->flags & I2C_M_RD) != 0;
@@ -166,7 +164,7 @@ static int i2c_powermac_master_xfer( struct i2c_adapter *adap,
rc = pmac_i2c_xfer(bus, addrdir, 0, 0, msgs->buf, msgs->len);
bail:
pmac_i2c_close(bus);
- return rc < 0 ? rc : msgs->len;
+ return rc < 0 ? rc : 1;
}
static u32 i2c_powermac_func(struct i2c_adapter * adapter)
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