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Staging: w35und: simplify hal_init_hardware() error handling

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Impact: cleanup

Use gotos to simplify the deep if-statement nesting in
hal_init_hardware().

Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Pekka Enberg 2009-04-08 11:13:59 +03:00 committed by Greg Kroah-Hartman
parent cfe31f81e1
commit 00e2e05dd0
1 changed files with 31 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

58
drivers/staging/winbond/wbusb.c
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@ -487,38 +487,42 @@ static int hal_init_hardware(struct ieee80211_hw *hw)
pHwData->FragmentThreshold = DEFAULT_FRAGMENT_THRESHOLD; // Setting default fragment threshold
pHwData->InitialResource = 1;
if( Wb35Reg_initial(pHwData)) {
pHwData->InitialResource = 2;
if (Wb35Tx_initial(pHwData)) {
pHwData->InitialResource = 3;
if (Wb35Rx_initial(pHwData)) {
pHwData->InitialResource = 4;
init_timer(&pHwData->LEDTimer);
pHwData->LEDTimer.function = hal_led_control;
pHwData->LEDTimer.data = (unsigned long) priv;
pHwData->LEDTimer.expires = jiffies + msecs_to_jiffies(1000);
add_timer(&pHwData->LEDTimer);
if (!Wb35Reg_initial(pHwData))
goto error;
//
// For restrict to vendor's hardware
//
SoftwareSet = hal_software_set( pHwData );
pHwData->InitialResource = 2;
if (!Wb35Tx_initial(pHwData))
goto error;
#ifdef Vendor2
// Try to make sure the EEPROM contain
SoftwareSet >>= 8;
if( SoftwareSet != 0x82 )
return false;
#endif
pHwData->InitialResource = 3;
if (!Wb35Rx_initial(pHwData))
goto error;
Wb35Rx_start(hw);
Wb35Tx_EP2VM_start(priv);
pHwData->InitialResource = 4;
init_timer(&pHwData->LEDTimer);
pHwData->LEDTimer.function = hal_led_control;
pHwData->LEDTimer.data = (unsigned long) priv;
pHwData->LEDTimer.expires = jiffies + msecs_to_jiffies(1000);
add_timer(&pHwData->LEDTimer);
return 0;
}
}
}
//
// For restrict to vendor's hardware
//
SoftwareSet = hal_software_set( pHwData );
#ifdef Vendor2
// Try to make sure the EEPROM contain
SoftwareSet >>= 8;
if( SoftwareSet != 0x82 )
return false;
#endif
Wb35Rx_start(hw);
Wb35Tx_EP2VM_start(priv);
return 0;
error:
pHwData->SurpriseRemove = 1;
return -EINVAL;
}