[PATCH] IDE oops with generic ide driver

[Go Taniguchi]

Hi,

In driver/ide/ide.c file, at function ide_revalidate_disk,
If there is no IDE-disk particular driver,
DRIVER(drive) is NULL, which means it is generic IDE driver.

The 2.4.x ide.c code was not written to check if it is NULL or not.
That's the problem. All other part is checked.

--- linux/drivers/ide/ide.c.orig	Fri Jun  7 04:34:09 2002
+++ linux/drivers/ide/ide.c	Fri Jun  7 17:07:16 2002
@@ -2049,7 +2049,7 @@
 		drive->part[p].nr_sects   = 0;
 	};
 
-	if (DRIVER(drive)->revalidate)
+	if (DRIVER(drive) && DRIVER(drive)->revalidate)
 		DRIVER(drive)->revalidate(drive);
 
 	drive->busy = 0;

Regards,
GO!