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Message-Id: <20200413101931.6334-1-oscar.carter@gmx.com>
Date: Mon, 13 Apr 2020 12:19:31 +0200
From: Oscar Carter <oscar.carter@....com>
To: Forest Bond <forest@...ttletooquiet.net>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Malcolm Priestley <tvboxspy@...il.com>,
Oscar Carter <oscar.carter@....com>,
Quentin Deslandes <quentin.deslandes@...ev.co.uk>,
devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH] staging: vt6656: Return error code in vnt_rf_write_embedded function
Use the error code returned by the vnt_control_out function as the
returned value of the vnt_rf_write_embedded function instead of a
boolean value.
Then, fix all vnt_rf_write_embedded calls removing the "and" operations
and replace with a direct assignment to the ret variable and add a check
condition after every call.
Also replace the boolean values true or false in the vnt_rf_set_txpower
function to 0 or error code EINVAL to follow the coding style guide.
The vnt_rf_set_txpower function is called only in the vnt_rf_setpower
function that already returns error codes. The calls to this function
(vnt_rf_set_txpower) not use the returned values, so they not need to be
fixed.
Signed-off-by: Oscar Carter <oscar.carter@....com>
---
drivers/staging/vt6656/rf.c | 99 ++++++++++++++++++++++++-------------
1 file changed, 64 insertions(+), 35 deletions(-)
diff --git a/drivers/staging/vt6656/rf.c b/drivers/staging/vt6656/rf.c
index 4f9aba0f21b0..5270ef511af9 100644
--- a/drivers/staging/vt6656/rf.c
+++ b/drivers/staging/vt6656/rf.c
@@ -21,6 +21,7 @@
*
*/
+#include <linux/errno.h>
#include "mac.h"
#include "rf.h"
#include "baseband.h"
@@ -531,10 +532,8 @@ int vnt_rf_write_embedded(struct vnt_private *priv, u32 data)
reg_data[2] = (u8)(data >> 16);
reg_data[3] = (u8)(data >> 24);
- vnt_control_out(priv, MESSAGE_TYPE_WRITE_IFRF,
- 0, 0, ARRAY_SIZE(reg_data), reg_data);
-
- return true;
+ return vnt_control_out(priv, MESSAGE_TYPE_WRITE_IFRF, 0, 0,
+ ARRAY_SIZE(reg_data), reg_data);
}
/* Set Tx power by rate and channel number */
@@ -603,14 +602,14 @@ static u8 vnt_rf_addpower(struct vnt_private *priv)
int vnt_rf_set_txpower(struct vnt_private *priv, u8 power, u32 rate)
{
u32 power_setting = 0;
- int ret = true;
+ int ret = 0;
power += vnt_rf_addpower(priv);
if (power > VNT_RF_MAX_POWER)
power = VNT_RF_MAX_POWER;
if (priv->power == power)
- return true;
+ return 0;
priv->power = power;
@@ -618,35 +617,50 @@ int vnt_rf_set_txpower(struct vnt_private *priv, u8 power, u32 rate)
case RF_AL2230:
power_setting = 0x0404090 | (power << 12);
- ret &= vnt_rf_write_embedded(priv, power_setting);
+ ret = vnt_rf_write_embedded(priv, power_setting);
+ if (ret)
+ return ret;
if (rate <= RATE_11M)
- ret &= vnt_rf_write_embedded(priv, 0x0001b400);
+ ret = vnt_rf_write_embedded(priv, 0x0001b400);
else
- ret &= vnt_rf_write_embedded(priv, 0x0005a400);
+ ret = vnt_rf_write_embedded(priv, 0x0005a400);
+
break;
case RF_AL2230S:
power_setting = 0x0404090 | (power << 12);
- ret &= vnt_rf_write_embedded(priv, power_setting);
+ ret = vnt_rf_write_embedded(priv, power_setting);
+ if (ret)
+ return ret;
if (rate <= RATE_11M) {
- ret &= vnt_rf_write_embedded(priv, 0x040c1400);
- ret &= vnt_rf_write_embedded(priv, 0x00299b00);
+ ret = vnt_rf_write_embedded(priv, 0x040c1400);
+ if (ret)
+ return ret;
+
+ ret = vnt_rf_write_embedded(priv, 0x00299b00);
} else {
- ret &= vnt_rf_write_embedded(priv, 0x0005a400);
- ret &= vnt_rf_write_embedded(priv, 0x00099b00);
+ ret = vnt_rf_write_embedded(priv, 0x0005a400);
+ if (ret)
+ return ret;
+
+ ret = vnt_rf_write_embedded(priv, 0x00099b00);
}
+
break;
case RF_AIROHA7230:
if (rate <= RATE_11M)
- ret &= vnt_rf_write_embedded(priv, 0x111bb900);
+ ret = vnt_rf_write_embedded(priv, 0x111bb900);
else
- ret &= vnt_rf_write_embedded(priv, 0x221bb900);
+ ret = vnt_rf_write_embedded(priv, 0x221bb900);
+
+ if (ret)
+ return ret;
if (power >= AL7230_PWR_IDX_LEN)
- return false;
+ return -EINVAL;
/*
* 0x080F1B00 for 3 wire control TxGain(D10)
@@ -654,61 +668,76 @@ int vnt_rf_set_txpower(struct vnt_private *priv, u8 power, u32 rate)
*/
power_setting = 0x080c0b00 | (power << 12);
- ret &= vnt_rf_write_embedded(priv, power_setting);
-
+ ret = vnt_rf_write_embedded(priv, power_setting);
break;
case RF_VT3226:
if (power >= VT3226_PWR_IDX_LEN)
- return false;
+ return -EINVAL;
power_setting = ((0x3f - power) << 20) | (0x17 << 8);
- ret &= vnt_rf_write_embedded(priv, power_setting);
-
+ ret = vnt_rf_write_embedded(priv, power_setting);
break;
case RF_VT3226D0:
if (power >= VT3226_PWR_IDX_LEN)
- return false;
+ return -EINVAL;
if (rate <= RATE_11M) {
u16 hw_value = priv->hw->conf.chandef.chan->hw_value;
power_setting = ((0x3f - power) << 20) | (0xe07 << 8);
- ret &= vnt_rf_write_embedded(priv, power_setting);
- ret &= vnt_rf_write_embedded(priv, 0x03c6a200);
+ ret = vnt_rf_write_embedded(priv, power_setting);
+ if (ret)
+ return ret;
+
+ ret = vnt_rf_write_embedded(priv, 0x03c6a200);
+ if (ret)
+ return ret;
dev_dbg(&priv->usb->dev,
"%s 11b channel [%d]\n", __func__, hw_value);
hw_value--;
- if (hw_value < ARRAY_SIZE(vt3226d0_lo_current_table))
- ret &= vnt_rf_write_embedded(priv,
+ if (hw_value < ARRAY_SIZE(vt3226d0_lo_current_table)) {
+ ret = vnt_rf_write_embedded(priv,
vt3226d0_lo_current_table[hw_value]);
+ if (ret)
+ return ret;
+ }
- ret &= vnt_rf_write_embedded(priv, 0x015C0800);
+ ret = vnt_rf_write_embedded(priv, 0x015C0800);
} else {
dev_dbg(&priv->usb->dev,
"@@@@ %s> 11G mode\n", __func__);
power_setting = ((0x3f - power) << 20) | (0x7 << 8);
- ret &= vnt_rf_write_embedded(priv, power_setting);
- ret &= vnt_rf_write_embedded(priv, 0x00C6A200);
- ret &= vnt_rf_write_embedded(priv, 0x016BC600);
- ret &= vnt_rf_write_embedded(priv, 0x00900800);
+ ret = vnt_rf_write_embedded(priv, power_setting);
+ if (ret)
+ return ret;
+
+ ret = vnt_rf_write_embedded(priv, 0x00C6A200);
+ if (ret)
+ return ret;
+
+ ret = vnt_rf_write_embedded(priv, 0x016BC600);
+ if (ret)
+ return ret;
+
+ ret = vnt_rf_write_embedded(priv, 0x00900800);
}
+
break;
case RF_VT3342A0:
if (power >= VT3342_PWR_IDX_LEN)
- return false;
+ return -EINVAL;
power_setting = ((0x3f - power) << 20) | (0x27 << 8);
- ret &= vnt_rf_write_embedded(priv, power_setting);
-
+ ret = vnt_rf_write_embedded(priv, power_setting);
break;
default:
break;
--
2.20.1
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