[PATCH] Atari Falcon IDE: clean up ide_intr_lock handling

Here's a fix on top of the patch you commited:

  - Rename ide_intr_lock to falconide_intr_lock
  - Add falconide_intr_lock to the Falcon IDE driver itself
  - Test for CONFIG_BLK_DEV_FALCON_IDE instead of CONFIG_ATARI since
    falconide_intr_lock is Falcon IDE-specific, not Atari-specific

drivers/ide/legacy/falconide.c

@@ -48,6 +48,14 @@ static int falconide_offsets[IDE_NR_PORTS] __initdata = {
 };
 
 
+    /*
+     *  falconide_intr_lock is used to obtain access to the IDE interrupt,
+     *  which is shared between several drivers.
+     */
+
+int falconide_intr_lock;
+
+
     /*
      *  Probe for a Falcon IDE interface
      */

include/asm-m68k/ide.h

@@ -144,19 +144,19 @@ static __inline__ void ide_init_default_hwifs(void)
 
 #define ATA_ARCH_ACK_INTR
 
-#ifdef CONFIG_ATARI
+#ifdef CONFIG_BLK_DEV_FALCON_IDE
 #define ATA_ARCH_LOCK
 
-extern int ide_intr_lock;
+extern int falconide_intr_lock;
 
 static __inline__ void ide_release_lock (void)
 {
 	if (MACH_IS_ATARI) {
-		if (ide_intr_lock == 0) {
+		if (falconide_intr_lock == 0) {
 			printk("ide_release_lock: bug\n");
 			return;
 		}
-		ide_intr_lock = 0;
+		falconide_intr_lock = 0;
 		stdma_release();
 	}
 }
@@ -164,14 +164,14 @@ static __inline__ void ide_release_lock (void)
 static __inline__ void ide_get_lock(void (*handler)(int, void *, struct pt_regs *), void *data)
 {
 	if (MACH_IS_ATARI) {
-		if (ide_intr_lock == 0) {
+		if (falconide_intr_lock == 0) {
 			if (in_interrupt() > 0)
 				panic( "Falcon IDE hasn't ST-DMA lock in interrupt" );
 			stdma_lock(handler, data);
-			ide_intr_lock = 1;
+			falconide_intr_lock = 1;
 		}
 	}
 }
-#endif /* CONFIG_ATARI */
+#endif /* CONFIG_BLK_DEV_FALCON_IDE */
 #endif /* __KERNEL__ */
 #endif /* _M68K_IDE_H */