diff options
author | Quentin Deslandes <quentin.deslandes@itdev.co.uk> | 2019-05-20 16:39:02 +0000 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-21 08:25:03 +0200 |
commit | 7156f7d9c38799ebb5d9d92e90207ff227ec4ade (patch) | |
tree | 555193f62ba092e31eb19034279b2f369ad8c3ad /drivers/staging/vt6656 | |
parent | 59608cb1de185613b3a7b1615a9b08480f5a566a (diff) | |
download | linux-7156f7d9c38799ebb5d9d92e90207ff227ec4ade.tar.gz linux-7156f7d9c38799ebb5d9d92e90207ff227ec4ade.tar.bz2 linux-7156f7d9c38799ebb5d9d92e90207ff227ec4ade.zip |
staging: vt6656: avoid discarding called function's return code
Change some of the driver's functions in order to handle error codes
instead of discarding them. These function now returns 0 on success and
a negative errno value on error.
Signed-off-by: Quentin Deslandes <quentin.deslandes@itdev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/vt6656')
-rw-r--r-- | drivers/staging/vt6656/baseband.c | 130 | ||||
-rw-r--r-- | drivers/staging/vt6656/baseband.h | 8 | ||||
-rw-r--r-- | drivers/staging/vt6656/card.c | 20 | ||||
-rw-r--r-- | drivers/staging/vt6656/int.c | 8 | ||||
-rw-r--r-- | drivers/staging/vt6656/int.h | 2 | ||||
-rw-r--r-- | drivers/staging/vt6656/mac.c | 19 | ||||
-rw-r--r-- | drivers/staging/vt6656/mac.h | 6 | ||||
-rw-r--r-- | drivers/staging/vt6656/rf.c | 38 | ||||
-rw-r--r-- | drivers/staging/vt6656/rf.h | 2 |
9 files changed, 152 insertions, 81 deletions
diff --git a/drivers/staging/vt6656/baseband.c b/drivers/staging/vt6656/baseband.c index b29ba237fa29..8d19ae71e7cc 100644 --- a/drivers/staging/vt6656/baseband.c +++ b/drivers/staging/vt6656/baseband.c @@ -329,7 +329,7 @@ void vnt_get_phy_field(struct vnt_private *priv, u32 frame_length, * Return Value: none * */ -void vnt_set_antenna_mode(struct vnt_private *priv, u8 antenna_mode) +int vnt_set_antenna_mode(struct vnt_private *priv, u8 antenna_mode) { switch (antenna_mode) { case ANT_TXA: @@ -344,8 +344,8 @@ void vnt_set_antenna_mode(struct vnt_private *priv, u8 antenna_mode) break; } - vnt_control_out(priv, MESSAGE_TYPE_SET_ANTMD, - (u16)antenna_mode, 0, 0, NULL); + return vnt_control_out(priv, MESSAGE_TYPE_SET_ANTMD, + (u16)antenna_mode, 0, 0, NULL); } /* @@ -364,7 +364,7 @@ void vnt_set_antenna_mode(struct vnt_private *priv, u8 antenna_mode) int vnt_vt3184_init(struct vnt_private *priv) { - int status; + int ret = 0; u16 length; u8 *addr; u8 *agc; @@ -372,11 +372,10 @@ int vnt_vt3184_init(struct vnt_private *priv) u8 array[256]; u8 data; - status = vnt_control_in(priv, MESSAGE_TYPE_READ, 0, - MESSAGE_REQUEST_EEPROM, EEP_MAX_CONTEXT_SIZE, - priv->eeprom); - if (status != STATUS_SUCCESS) - return false; + ret = vnt_control_in(priv, MESSAGE_TYPE_READ, 0, MESSAGE_REQUEST_EEPROM, + EEP_MAX_CONTEXT_SIZE, priv->eeprom); + if (ret) + goto end; priv->rf_type = priv->eeprom[EEP_OFS_RFTYPE]; @@ -423,8 +422,10 @@ int vnt_vt3184_init(struct vnt_private *priv) priv->bb_vga[3] = 0x0; /* Fix VT3226 DFC system timing issue */ - vnt_mac_reg_bits_on(priv, MAC_REG_SOFTPWRCTL2, - SOFTPWRCTL_RFLEOPT); + ret = vnt_mac_reg_bits_on(priv, MAC_REG_SOFTPWRCTL2, + SOFTPWRCTL_RFLEOPT); + if (ret) + goto end; } else if (priv->rf_type == RF_VT3342A0) { priv->bb_rx_conf = vnt_vt3184_vt3226d0[10]; length = sizeof(vnt_vt3184_vt3226d0); @@ -438,48 +439,74 @@ int vnt_vt3184_init(struct vnt_private *priv) priv->bb_vga[3] = 0x0; /* Fix VT3226 DFC system timing issue */ - vnt_mac_reg_bits_on(priv, MAC_REG_SOFTPWRCTL2, - SOFTPWRCTL_RFLEOPT); + ret = vnt_mac_reg_bits_on(priv, MAC_REG_SOFTPWRCTL2, + SOFTPWRCTL_RFLEOPT); + if (ret) + goto end; } else { - return true; + goto end; } memcpy(array, addr, length); - vnt_control_out(priv, MESSAGE_TYPE_WRITE, 0, - MESSAGE_REQUEST_BBREG, length, array); + ret = vnt_control_out(priv, MESSAGE_TYPE_WRITE, 0, + MESSAGE_REQUEST_BBREG, length, array); + if (ret) + goto end; memcpy(array, agc, length_agc); - vnt_control_out(priv, MESSAGE_TYPE_WRITE, 0, - MESSAGE_REQUEST_BBAGC, length_agc, array); + ret = vnt_control_out(priv, MESSAGE_TYPE_WRITE, 0, + MESSAGE_REQUEST_BBAGC, length_agc, array); + if (ret) + goto end; if ((priv->rf_type == RF_VT3226) || (priv->rf_type == RF_VT3342A0)) { - vnt_control_out_u8(priv, MESSAGE_REQUEST_MACREG, - MAC_REG_ITRTMSET, 0x23); - vnt_mac_reg_bits_on(priv, MAC_REG_PAPEDELAY, 0x01); + ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_MACREG, + MAC_REG_ITRTMSET, 0x23); + if (ret) + goto end; + + ret = vnt_mac_reg_bits_on(priv, MAC_REG_PAPEDELAY, 0x01); + if (ret) + goto end; } else if (priv->rf_type == RF_VT3226D0) { - vnt_control_out_u8(priv, MESSAGE_REQUEST_MACREG, - MAC_REG_ITRTMSET, 0x11); - vnt_mac_reg_bits_on(priv, MAC_REG_PAPEDELAY, 0x01); + ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_MACREG, + MAC_REG_ITRTMSET, 0x11); + if (ret) + goto end; + + ret = vnt_mac_reg_bits_on(priv, MAC_REG_PAPEDELAY, 0x01); + if (ret) + goto end; } - vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x04, 0x7f); - vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0d, 0x01); + ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x04, 0x7f); + if (ret) + goto end; - vnt_rf_table_download(priv); + ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0d, 0x01); + if (ret) + goto end; + + ret = vnt_rf_table_download(priv); + if (ret) + goto end; /* Fix for TX USB resets from vendors driver */ - vnt_control_in(priv, MESSAGE_TYPE_READ, USB_REG4, - MESSAGE_REQUEST_MEM, sizeof(data), &data); + ret = vnt_control_in(priv, MESSAGE_TYPE_READ, USB_REG4, + MESSAGE_REQUEST_MEM, sizeof(data), &data); + if (ret) + goto end; data |= 0x2; - vnt_control_out(priv, MESSAGE_TYPE_WRITE, USB_REG4, - MESSAGE_REQUEST_MEM, sizeof(data), &data); + ret = vnt_control_out(priv, MESSAGE_TYPE_WRITE, USB_REG4, + MESSAGE_REQUEST_MEM, sizeof(data), &data); - return true; +end: + return ret; } /* @@ -494,8 +521,9 @@ int vnt_vt3184_init(struct vnt_private *priv) * Return Value: none * */ -void vnt_set_short_slot_time(struct vnt_private *priv) +int vnt_set_short_slot_time(struct vnt_private *priv) { + int ret = 0; u8 bb_vga = 0; if (priv->short_slot_time) @@ -503,12 +531,18 @@ void vnt_set_short_slot_time(struct vnt_private *priv) else priv->bb_rx_conf |= 0x20; - vnt_control_in_u8(priv, MESSAGE_REQUEST_BBREG, 0xe7, &bb_vga); + ret = vnt_control_in_u8(priv, MESSAGE_REQUEST_BBREG, 0xe7, &bb_vga); + if (ret) + goto end; if (bb_vga == priv->bb_vga[0]) priv->bb_rx_conf |= 0x20; - vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0a, priv->bb_rx_conf); + ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0a, + priv->bb_rx_conf); + +end: + return ret; } void vnt_set_vga_gain_offset(struct vnt_private *priv, u8 data) @@ -536,16 +570,30 @@ void vnt_set_vga_gain_offset(struct vnt_private *priv, u8 data) * Return Value: none * */ -void vnt_set_deep_sleep(struct vnt_private *priv) +int vnt_set_deep_sleep(struct vnt_private *priv) { - vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0c, 0x17);/* CR12 */ - vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0d, 0xB9);/* CR13 */ + int ret = 0; + + /* CR12 */ + ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0c, 0x17); + if (ret) + return ret; + + /* CR13 */ + return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0d, 0xB9); } -void vnt_exit_deep_sleep(struct vnt_private *priv) +int vnt_exit_deep_sleep(struct vnt_private *priv) { - vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0c, 0x00);/* CR12 */ - vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0d, 0x01);/* CR13 */ + int ret = 0; + + /* CR12 */ + ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0c, 0x00); + if (ret) + return ret; + + /* CR13 */ + return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0d, 0x01); } void vnt_update_pre_ed_threshold(struct vnt_private *priv, int scanning) diff --git a/drivers/staging/vt6656/baseband.h b/drivers/staging/vt6656/baseband.h index c3b8bbdb3ea1..dc42aa6ae1d9 100644 --- a/drivers/staging/vt6656/baseband.h +++ b/drivers/staging/vt6656/baseband.h @@ -79,12 +79,12 @@ unsigned int vnt_get_frame_time(u8 preamble_type, u8 pkt_type, void vnt_get_phy_field(struct vnt_private *priv, u32 frame_length, u16 tx_rate, u8 pkt_type, struct vnt_phy_field *phy); -void vnt_set_short_slot_time(struct vnt_private *priv); +int vnt_set_short_slot_time(struct vnt_private *priv); void vnt_set_vga_gain_offset(struct vnt_private *priv, u8 data); -void vnt_set_antenna_mode(struct vnt_private *priv, u8 antenna_mode); +int vnt_set_antenna_mode(struct vnt_private *priv, u8 antenna_mode); int vnt_vt3184_init(struct vnt_private *priv); -void vnt_set_deep_sleep(struct vnt_private *priv); -void vnt_exit_deep_sleep(struct vnt_private *priv); +int vnt_set_deep_sleep(struct vnt_private *priv); +int vnt_exit_deep_sleep(struct vnt_private *priv); void vnt_update_pre_ed_threshold(struct vnt_private *priv, int scanning); #endif /* __BASEBAND_H__ */ diff --git a/drivers/staging/vt6656/card.c b/drivers/staging/vt6656/card.c index 501f482b41c4..08fc03d8740e 100644 --- a/drivers/staging/vt6656/card.c +++ b/drivers/staging/vt6656/card.c @@ -674,7 +674,7 @@ void vnt_update_next_tbtt(struct vnt_private *priv, u64 tsf, */ int vnt_radio_power_off(struct vnt_private *priv) { - int ret = true; + int ret = 0; switch (priv->rf_type) { case RF_AL2230: @@ -683,17 +683,25 @@ int vnt_radio_power_off(struct vnt_private *priv) case RF_VT3226: case RF_VT3226D0: case RF_VT3342A0: - vnt_mac_reg_bits_off(priv, MAC_REG_SOFTPWRCTL, - (SOFTPWRCTL_SWPE2 | SOFTPWRCTL_SWPE3)); + ret = vnt_mac_reg_bits_off(priv, MAC_REG_SOFTPWRCTL, + (SOFTPWRCTL_SWPE2 | SOFTPWRCTL_SWPE3)); break; } - vnt_mac_reg_bits_off(priv, MAC_REG_HOSTCR, HOSTCR_RXON); + if (ret) + goto end; + + ret = vnt_mac_reg_bits_off(priv, MAC_REG_HOSTCR, HOSTCR_RXON); + if (ret) + goto end; - vnt_set_deep_sleep(priv); + ret = vnt_set_deep_sleep(priv); + if (ret) + goto end; - vnt_mac_reg_bits_on(priv, MAC_REG_GPIOCTL1, GPIO3_INTMD); + ret = vnt_mac_reg_bits_on(priv, MAC_REG_GPIOCTL1, GPIO3_INTMD); +end: return ret; } diff --git a/drivers/staging/vt6656/int.c b/drivers/staging/vt6656/int.c index 504424b19fcf..f40947955675 100644 --- a/drivers/staging/vt6656/int.c +++ b/drivers/staging/vt6656/int.c @@ -39,18 +39,20 @@ static const u8 fallback_rate1[5][5] = { {RATE_54M, RATE_54M, RATE_36M, RATE_18M, RATE_18M} }; -void vnt_int_start_interrupt(struct vnt_private *priv) +int vnt_int_start_interrupt(struct vnt_private *priv) { + int ret = 0; unsigned long flags; - int status; dev_dbg(&priv->usb->dev, "---->Interrupt Polling Thread\n"); spin_lock_irqsave(&priv->lock, flags); - status = vnt_start_interrupt_urb(priv); + ret = vnt_start_interrupt_urb(priv); spin_unlock_irqrestore(&priv->lock, flags); + + return ret; } static int vnt_int_report_rate(struct vnt_private *priv, u8 pkt_no, u8 tsr) diff --git a/drivers/staging/vt6656/int.h b/drivers/staging/vt6656/int.h index 987c454e99e9..8a6d60569ceb 100644 --- a/drivers/staging/vt6656/int.h +++ b/drivers/staging/vt6656/int.h @@ -41,7 +41,7 @@ struct vnt_interrupt_data { u8 sw[2]; } __packed; -void vnt_int_start_interrupt(struct vnt_private *priv); +int vnt_int_start_interrupt(struct vnt_private *priv); void vnt_int_process_data(struct vnt_private *priv); #endif /* __INT_H__ */ diff --git a/drivers/staging/vt6656/mac.c b/drivers/staging/vt6656/mac.c index 0b543854ea97..5cacf6e60e90 100644 --- a/drivers/staging/vt6656/mac.c +++ b/drivers/staging/vt6656/mac.c @@ -129,27 +129,26 @@ void vnt_mac_set_keyentry(struct vnt_private *priv, u16 key_ctl, u32 entry_idx, (u8 *)&set_key); } -void vnt_mac_reg_bits_off(struct vnt_private *priv, u8 reg_ofs, u8 bits) +int vnt_mac_reg_bits_off(struct vnt_private *priv, u8 reg_ofs, u8 bits) { u8 data[2]; data[0] = 0; data[1] = bits; - vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, - reg_ofs, MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), - data); + return vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, reg_ofs, + MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data); } -void vnt_mac_reg_bits_on(struct vnt_private *priv, u8 reg_ofs, u8 bits) +int vnt_mac_reg_bits_on(struct vnt_private *priv, u8 reg_ofs, u8 bits) { u8 data[2]; data[0] = bits; data[1] = bits; - vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, reg_ofs, - MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data); + return vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, reg_ofs, + MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data); } void vnt_mac_write_word(struct vnt_private *priv, u8 reg_ofs, u16 word) @@ -224,13 +223,13 @@ void vnt_mac_set_beacon_interval(struct vnt_private *priv, u16 interval) MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data); } -void vnt_mac_set_led(struct vnt_private *priv, u8 state, u8 led) +int vnt_mac_set_led(struct vnt_private *priv, u8 state, u8 led) { u8 data[2]; data[0] = led; data[1] = state; - vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, MAC_REG_PAPEDELAY, - MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data); + return vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, MAC_REG_PAPEDELAY, + MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data); } diff --git a/drivers/staging/vt6656/mac.h b/drivers/staging/vt6656/mac.h index 3fd87f95c524..0a42308b81e9 100644 --- a/drivers/staging/vt6656/mac.h +++ b/drivers/staging/vt6656/mac.h @@ -360,8 +360,8 @@ void vnt_mac_set_bb_type(struct vnt_private *priv, u8 type); void vnt_mac_disable_keyentry(struct vnt_private *priv, u8 entry_idx); void vnt_mac_set_keyentry(struct vnt_private *priv, u16 key_ctl, u32 entry_idx, u32 key_idx, u8 *addr, u8 *key); -void vnt_mac_reg_bits_off(struct vnt_private *priv, u8 reg_ofs, u8 bits); -void vnt_mac_reg_bits_on(struct vnt_private *priv, u8 reg_ofs, u8 bits); +int vnt_mac_reg_bits_off(struct vnt_private *priv, u8 reg_ofs, u8 bits); +int vnt_mac_reg_bits_on(struct vnt_private *priv, u8 reg_ofs, u8 bits); void vnt_mac_write_word(struct vnt_private *priv, u8 reg_ofs, u16 word); void vnt_mac_set_bssid_addr(struct vnt_private *priv, u8 *addr); void vnt_mac_enable_protect_mode(struct vnt_private *priv); @@ -369,6 +369,6 @@ void vnt_mac_disable_protect_mode(struct vnt_private *priv); void vnt_mac_enable_barker_preamble_mode(struct vnt_private *priv); void vnt_mac_disable_barker_preamble_mode(struct vnt_private *priv); void vnt_mac_set_beacon_interval(struct vnt_private *priv, u16 interval); -void vnt_mac_set_led(struct vnt_private *privpriv, u8 state, u8 led); +int vnt_mac_set_led(struct vnt_private *privpriv, u8 state, u8 led); #endif /* __MAC_H__ */ diff --git a/drivers/staging/vt6656/rf.c b/drivers/staging/vt6656/rf.c index 18f75dcc65d2..43237b7e1dbe 100644 --- a/drivers/staging/vt6656/rf.c +++ b/drivers/staging/vt6656/rf.c @@ -811,8 +811,9 @@ void vnt_rf_rssi_to_dbm(struct vnt_private *priv, u8 rssi, long *dbm) *dbm = -1 * (a + b * 2); } -void vnt_rf_table_download(struct vnt_private *priv) +int vnt_rf_table_download(struct vnt_private *priv) { + int ret = 0; u16 length1 = 0, length2 = 0, length3 = 0; u8 *addr1 = NULL, *addr2 = NULL, *addr3 = NULL; u16 length, value; @@ -865,8 +866,10 @@ void vnt_rf_table_download(struct vnt_private *priv) /* Init Table */ memcpy(array, addr1, length1); - vnt_control_out(priv, MESSAGE_TYPE_WRITE, 0, - MESSAGE_REQUEST_RF_INIT, length1, array); + ret = vnt_control_out(priv, MESSAGE_TYPE_WRITE, 0, + MESSAGE_REQUEST_RF_INIT, length1, array); + if (ret) + goto end; /* Channel Table 0 */ value = 0; @@ -878,8 +881,10 @@ void vnt_rf_table_download(struct vnt_private *priv) memcpy(array, addr2, length); - vnt_control_out(priv, MESSAGE_TYPE_WRITE, - value, MESSAGE_REQUEST_RF_CH0, length, array); + ret = vnt_control_out(priv, MESSAGE_TYPE_WRITE, value, + MESSAGE_REQUEST_RF_CH0, length, array); + if (ret) + goto end; length2 -= length; value += length; @@ -896,8 +901,10 @@ void vnt_rf_table_download(struct vnt_private *priv) memcpy(array, addr3, length); - vnt_control_out(priv, MESSAGE_TYPE_WRITE, - value, MESSAGE_REQUEST_RF_CH1, length, array); + ret = vnt_control_out(priv, MESSAGE_TYPE_WRITE, value, + MESSAGE_REQUEST_RF_CH1, length, array); + if (ret) + goto end; length3 -= length; value += length; @@ -913,8 +920,10 @@ void vnt_rf_table_download(struct vnt_private *priv) memcpy(array, addr1, length1); /* Init Table 2 */ - vnt_control_out(priv, MESSAGE_TYPE_WRITE, - 0, MESSAGE_REQUEST_RF_INIT2, length1, array); + ret = vnt_control_out(priv, MESSAGE_TYPE_WRITE, 0, + MESSAGE_REQUEST_RF_INIT2, length1, array); + if (ret) + goto end; /* Channel Table 0 */ value = 0; @@ -926,13 +935,18 @@ void vnt_rf_table_download(struct vnt_private *priv) memcpy(array, addr2, length); - vnt_control_out(priv, MESSAGE_TYPE_WRITE, - value, MESSAGE_REQUEST_RF_CH2, - length, array); + ret = vnt_control_out(priv, MESSAGE_TYPE_WRITE, value, + MESSAGE_REQUEST_RF_CH2, length, + array); + if (ret) + goto end; length2 -= length; value += length; addr2 += length; } } + +end: + return ret; } diff --git a/drivers/staging/vt6656/rf.h b/drivers/staging/vt6656/rf.h index 6103117d6df5..7494546d71b8 100644 --- a/drivers/staging/vt6656/rf.h +++ b/drivers/staging/vt6656/rf.h @@ -44,6 +44,6 @@ int vnt_rf_write_embedded(struct vnt_private *priv, u32 data); int vnt_rf_setpower(struct vnt_private *priv, u32 rate, u32 channel); int vnt_rf_set_txpower(struct vnt_private *priv, u8 power, u32 rate); void vnt_rf_rssi_to_dbm(struct vnt_private *priv, u8 rssi, long *dbm); -void vnt_rf_table_download(struct vnt_private *priv); +int vnt_rf_table_download(struct vnt_private *priv); #endif /* __RF_H__ */ |