[PATCH 5/8] Drivers: scsi: storvsc: Fix a bug in the handling of SRB status flags
From: K. Y. Srinivasan
Date: Tue Jul 08 2014 - 19:47:14 EST
SRB status can have additional information. Mask these out before processing SRB status.
Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
---
drivers/scsi/storvsc_drv.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index 428dbda..8f1b263 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -299,11 +299,14 @@ enum storvsc_request_type {
*/
#define SRB_STATUS_AUTOSENSE_VALID 0x80
+#define SRB_STATUS_QUEUE_FROZEN 0x40
#define SRB_STATUS_INVALID_LUN 0x20
#define SRB_STATUS_SUCCESS 0x01
#define SRB_STATUS_ABORTED 0x02
#define SRB_STATUS_ERROR 0x04
+#define SRB_STATUS(status) \
+ (status & ~(SRB_STATUS_AUTOSENSE_VALID | SRB_STATUS_QUEUE_FROZEN))
/*
* This is the end of Protocol specific defines.
*/
@@ -1007,7 +1010,7 @@ static void storvsc_handle_error(struct vmscsi_request *vm_srb,
void (*process_err_fn)(struct work_struct *work);
bool do_work = false;
- switch (vm_srb->srb_status) {
+ switch (SRB_STATUS(vm_srb->srb_status)) {
case SRB_STATUS_ERROR:
/*
* If there is an error; offline the device since all
--
1.7.4.1
--
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