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authorK. Y. Srinivasan <kys@microsoft.com>2014-07-12 09:48:32 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-09-17 09:03:58 -0700
commit8ce6d81a2d174a0cecc1efbaf2d218c90d2e2fbd (patch)
tree2a13fb3c717faea86acd3ee546e261445407a431 /drivers/scsi
parent7afc3ac1263be1a6f2ef76d76ff41615a0c795d3 (diff)
downloadlinux-linaro-stable-8ce6d81a2d174a0cecc1efbaf2d218c90d2e2fbd.tar.gz
drivers: scsi: storvsc: Correctly handle TEST_UNIT_READY failure
commit 3533f8603d28b77c62d75ec899449a99bc6b77a1 upstream. On some Windows hosts on FC SANs, TEST_UNIT_READY can return SRB_STATUS_ERROR. Correctly handle this. Note that there is sufficient sense information to support scsi error handling even in this case. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/storvsc_drv.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index 34a8f526908f..87ca72d36d5b 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -804,6 +804,13 @@ static void storvsc_handle_error(struct vmscsi_request *vm_srb,
case ATA_12:
set_host_byte(scmnd, DID_PASSTHROUGH);
break;
+ /*
+ * On Some Windows hosts TEST_UNIT_READY command can return
+ * SRB_STATUS_ERROR, let the upper level code deal with it
+ * based on the sense information.
+ */
+ case TEST_UNIT_READY:
+ break;
default:
set_host_byte(scmnd, DID_TARGET_FAILURE);
}