2020-03-29 08:43:10

by John B. Wyatt IV

Subject: [PATCH v2] staging: vt6656: add error code handling to unused variable

Add error code handling to unused 'ret' variable that was never used.
Return an error code from functions called within vnt_radio_power_on.

Issue reported by coccinelle (coccicheck).

Suggested-by: Quentin Deslandes <[email protected]>
Suggested-by: Stefano Brivio <[email protected]>
Signed-off-by: John B. Wyatt IV <[email protected]>
---
v2: Replace goto statements with return.
Remove last if check because it was unneeded.
Suggested-by: Julia Lawall <[email protected]>

drivers/staging/vt6656/card.c | 19 ++++++++++++++-----
1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/vt6656/card.c b/drivers/staging/vt6656/card.c
index dc3ab10eb630..9d23c3ec1e60 100644
--- a/drivers/staging/vt6656/card.c
+++ b/drivers/staging/vt6656/card.c
@@ -723,9 +723,13 @@ int vnt_radio_power_on(struct vnt_private *priv)
{
int ret = 0;

- vnt_exit_deep_sleep(priv);
+ ret = vnt_exit_deep_sleep(priv);
+ if (ret)
+ goto end;

- vnt_mac_reg_bits_on(priv, MAC_REG_HOSTCR, HOSTCR_RXON);
+ ret = vnt_mac_reg_bits_on(priv, MAC_REG_HOSTCR, HOSTCR_RXON);
+ if (ret)
+ goto end;

switch (priv->rf_type) {
case RF_AL2230:
@@ -734,13 +738,18 @@ int vnt_radio_power_on(struct vnt_private *priv)
case RF_VT3226:
case RF_VT3226D0:
case RF_VT3342A0:
- vnt_mac_reg_bits_on(priv, MAC_REG_SOFTPWRCTL,
- (SOFTPWRCTL_SWPE2 | SOFTPWRCTL_SWPE3));
+ ret = vnt_mac_reg_bits_on(priv, MAC_REG_SOFTPWRCTL,
+ (SOFTPWRCTL_SWPE2 | SOFTPWRCTL_SWPE3));
break;
}
+ if (ret)
+ goto end;

- vnt_mac_reg_bits_off(priv, MAC_REG_GPIOCTL1, GPIO3_INTMD);
+ ret = vnt_mac_reg_bits_off(priv, MAC_REG_GPIOCTL1, GPIO3_INTMD);
+ if (ret)
+ goto end;

+end:
return ret;
}

--
2.25.1

2020-04-02 10:18:09

by Dan Carpenter

Subject: Re: [PATCH v2] staging: vt6656: add error code handling to unused variable

Ignore this one. John sent it by mistake and has already sent a v3.

regards,
dan carpenter