From 272aa3966b3244e576c5c07bfff77ea320b89317 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Fri, 17 Apr 2009 10:56:51 -0300 Subject: [PATCH] V4L/DVB (11568): cx18: Fix the handling of i2c bus registration error * 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 Acked-by: Andy Walls Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx18/cx18-i2c.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/drivers/media/video/cx18/cx18-i2c.c b/drivers/media/video/cx18/cx18-i2c.c index b9b7064a2be8..8591e4fc359f 100644 --- a/drivers/media/video/cx18/cx18-i2c.c +++ b/drivers/media/video/cx18/cx18-i2c.c @@ -211,7 +211,7 @@ static struct i2c_algo_bit_data cx18_i2c_algo_template = { /* 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++) { @@ -268,8 +268,18 @@ 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) -- 2.30.2