libata: ensure NCQ error result taskfile is fully initialized

before returning it via qc->result_tf.

Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 9e18cc9be0d37f910345582a180dc4909ad34abb..228740f356c961ef3768411a349d146a950c3c4f 100644 (file)
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -1628,6 +1628,7 @@ 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 "