BUG_ON() is rather useless for debugging as it leads to panic(). Use WARN_ON() and handle the error cases accordingly.
Cc: patches@opensource.wolfsonmicro.com Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/soc/codecs/wm2000.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/sound/soc/codecs/wm2000.c b/sound/soc/codecs/wm2000.c index 7fefd766b582..8ae50274ea8f 100644 --- a/sound/soc/codecs/wm2000.c +++ b/sound/soc/codecs/wm2000.c @@ -137,7 +137,8 @@ static int wm2000_power_up(struct i2c_client *i2c, int analogue) unsigned long rate; int ret;
- BUG_ON(wm2000->anc_mode != ANC_OFF); + if (WARN_ON(wm2000->anc_mode != ANC_OFF)) + return -EINVAL;
dev_dbg(&i2c->dev, "Beginning power up\n");
@@ -277,7 +278,8 @@ static int wm2000_enter_bypass(struct i2c_client *i2c, int analogue) { struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev);
- BUG_ON(wm2000->anc_mode != ANC_ACTIVE); + if (WARN_ON(wm2000->anc_mode != ANC_ACTIVE)) + return -EINVAL;
if (analogue) { wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, @@ -315,7 +317,8 @@ static int wm2000_exit_bypass(struct i2c_client *i2c, int analogue) { struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev);
- BUG_ON(wm2000->anc_mode != ANC_BYPASS); + if (WARN_ON(wm2000->anc_mode != ANC_BYPASS)) + return -EINVAL; wm2000_write(i2c, WM2000_REG_SYS_CTL1, 0);
@@ -349,7 +352,8 @@ static int wm2000_enter_standby(struct i2c_client *i2c, int analogue) { struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev);
- BUG_ON(wm2000->anc_mode != ANC_ACTIVE); + if (WARN_ON(wm2000->anc_mode != ANC_ACTIVE)) + return -EINVAL;
if (analogue) { wm2000_write(i2c, WM2000_REG_ANA_VMID_PD_TIME, 248 / 4); @@ -392,7 +396,8 @@ static int wm2000_exit_standby(struct i2c_client *i2c, int analogue) { struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev);
- BUG_ON(wm2000->anc_mode != ANC_STANDBY); + if (WARN_ON(wm2000->anc_mode != ANC_STANDBY)) + return -EINVAL;
wm2000_write(i2c, WM2000_REG_SYS_CTL1, 0);