[PATCH] ide: don't send cacheflush to drives that don't understand it

82ec2170 · Arjan van de Ven · Linus Torvalds · 57bea21a · 82ec2170
Commit 82ec2170 authored May 06, 2004 by Arjan van de Ven Committed by Linus Torvalds May 06, 2004
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drivers/ide/ide-disk.c drivers/ide/ide-disk.c +3 -0

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--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -1774,6 +1774,9 @@ static int idedisk_open(struct inode *inode, struct file *filp)
 static int ide_cacheflush_p(ide_drive_t *drive)
 {
+	if (!(drive->id->cfs_enable_2 & 0x3000))
+		return 0;
 	if(drive->wcache)
 	{
 		if (do_idedisk_flushcache(drive))