File 0217-ahci-add-ncq_err-helper.patch of Package qemu.3557

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File 0217-ahci-add-ncq_err-helper.patch of Package qemu.3557

From dfa035c307344f457016d040dec9a8b052078e93 Mon Sep 17 00:00:00 2001
From: John Snow <jsnow@redhat.com>
Date: Sat, 4 Jul 2015 02:06:03 -0400
Subject: [PATCH] ahci: add ncq_err helper

Set some appropriate error bits for NCQ for us.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1435016308-6150-4-git-send-email-jsnow@redhat.com
(cherry picked from commit a55c8231d04e3023bc5c3da9290f01e7d6989a94)
[LM: BSC#961333 CVE-2016-1568]
Signed-off-by: Lin Ma <lma@suse.com>
---
 hw/ide/ahci.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c
index 457a7a1..31c0548 100644
--- a/hw/ide/ahci.c
+++ b/hw/ide/ahci.c
@@ -715,6 +715,15 @@ out:
     return r;
 }
 
+static void ncq_err(NCQTransferState *ncq_tfs)
+{
+    IDEState *ide_state = &ncq_tfs->drive->port.ifs[0];
+
+    ide_state->error = ABRT_ERR;
+    ide_state->status = READY_STAT | ERR_STAT;
+    ncq_tfs->drive->port_regs.scr_err |= (1 << ncq_tfs->tag);
+}
+
 static void ncq_cb(void *opaque, int ret)
 {
     NCQTransferState *ncq_tfs = (NCQTransferState *)opaque;
@@ -724,10 +733,7 @@ static void ncq_cb(void *opaque, int ret)
     ncq_tfs->drive->port_regs.scr_act &= ~(1 << ncq_tfs->tag);
 
     if (ret < 0) {
-        /* error */
-        ide_state->error = ABRT_ERR;
-        ide_state->status = READY_STAT | ERR_STAT;
-        ncq_tfs->drive->port_regs.scr_err |= (1 << ncq_tfs->tag);
+        ncq_err(ncq_tfs);
     } else {
         ide_state->status = READY_STAT | SEEK_STAT;
     }

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File 0217-ahci-add-ncq_err-helper.patch of Package qemu.3557

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