* Return actual error values as returned by the i2c subsystem, rather
than 0 or 1.
* If the registration of the second bus fails, unregister the first one
before exiting, otherwise we are leaking resources.
Signed-off-by: Jean Delvare <khali@xxxxxxxxxxxx>
Cc: Hans Verkuil <hverkuil@xxxxxxxxx>
Cc: Andy Walls <awalls@xxxxxxxxx>
---
linux/drivers/media/video/cx18/cx18-i2c.c | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)
--- v4l-dvb.orig/linux/drivers/media/video/cx18/cx18-i2c.c 2009-03-01 16:09:09.000000000 +0100
+++ v4l-dvb/linux/drivers/media/video/cx18/cx18-i2c.c 2009-04-03 18:45:18.000000000 +0200
@@ -214,7 +214,7 @@ static struct i2c_algo_bit_data cx18_i2c
/* init + register i2c algo-bit adapter */
int init_cx18_i2c(struct cx18 *cx)
{
- int i;
+ int i, err;
CX18_DEBUG_I2C("i2c init\n");
for (i = 0; i < 2; i++) {
@@ -273,8 +273,18 @@ int init_cx18_i2c(struct cx18 *cx)
cx18_call_hw(cx, CX18_HW_GPIO_RESET_CTRL,
core, reset, (u32) CX18_GPIO_RESET_I2C);
- return i2c_bit_add_bus(&cx->i2c_adap[0]) ||
- i2c_bit_add_bus(&cx->i2c_adap[1]);
+ err = i2c_bit_add_bus(&cx->i2c_adap[0]);
+ if (err)
+ goto err;
+ err = i2c_bit_add_bus(&cx->i2c_adap[1]);
+ if (err)
+ goto err_del_bus_0;
+ return 0;
+
+ err_del_bus_0:
+ i2c_del_adapter(&cx->i2c_adap[0]);
+ err:
+ return err;
}
void exit_cx18_i2c(struct cx18 *cx)
--
Jean Delvare
--
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