svn commit: r190867 - head/sys/dev/ath/ath_hal

[Sam Leffler]

Author: sam
Date: Thu Apr  9 16:53:59 2009
New Revision: 190867
URL: http://svn.freebsd.org/changeset/base/190867

Log:
  check the method pointer before invoking ah_eepromDetach as it can
  be null if attach work fails before hooking up the eeprom support
  
  Obtained from:	madwifi

Modified:
  head/sys/dev/ath/ath_hal/ah_internal.h

Modified: head/sys/dev/ath/ath_hal/ah_internal.h
==============================================================================
--- head/sys/dev/ath/ath_hal/ah_internal.h	Thu Apr  9 13:02:55 2009	(r190866)
+++ head/sys/dev/ath/ath_hal/ah_internal.h	Thu Apr  9 16:53:59 2009	(r190867)
@@ -333,8 +333,10 @@ struct ath_hal_private {
 #define	ath_hal_disablePCIE(_ah) \
 	(_ah)->ah_disablePCIE(_ah)
 
-#define	ath_hal_eepromDetach(_ah) \
-	AH_PRIVATE(_ah)->ah_eepromDetach(_ah)
+#define	ath_hal_eepromDetach(_ah) do {				\
+	if (AH_PRIVATE(_ah)->ah_eepromDetach != AH_NULL)	\
+		AH_PRIVATE(_ah)->ah_eepromDetach(_ah);		\
+} while (0)
 #define	ath_hal_eepromGet(_ah, _param, _val) \
 	AH_PRIVATE(_ah)->ah_eepromGet(_ah, _param, _val)
 #define	ath_hal_eepromSet(_ah, _param, _val) \