GIT: unionfs2-2.6.27.y: libata: ensure NCQ error result taskfile is fully initialized before returning it via qc->result_tf.

[Erez Zadok]

commit bf3d0e3c484815ea68c671a4da71fd2e01cc1ac6
Author: Jeff Garzik <jeff at garzik.org>
Date:   Thu Apr 22 21:59:13 2010 -0400

    libata: ensure NCQ error result taskfile is fully initialized before returning it via qc->result_tf.
    
    commit a09bf4cd53b8ab000197ef81f15d50f29ecf973c upstream.
    
    Signed-off-by: Jeff Garzik <jgarzik at redhat.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh at suse.de>

diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 22995d7..3882e7e 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -1497,6 +1497,7 @@ void ata_eh_analyze_ncq_error(struct ata_link *link)
 	}
 
 	/* okay, this error is ours */
+	memset(&tf, 0, sizeof(tf));
 	rc = ata_eh_read_log_10h(dev, &tag, &tf);
 	if (rc) {
 		ata_link_printk(link, KERN_ERR, "failed to read log page 10h "