From: K. Y. Srinivasan Date: Wed, 7 Oct 2015 01:04:01 +0000 (-0700) Subject: scsi: storvsc: Fix a bug in the handling of SRB status flags X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=3209f9d780d1;p=linux-beck.git scsi: storvsc: Fix a bug in the handling of SRB status flags SRB status can have additional information. Mask these out before processing SRB status. This patch was sent as part of a collection of patches more than a year ago. While the rest of the patches in the set were comitted, this patch was not. I woulod like to thank Olaf for noticing that this patch was not committed upstream. Signed-off-by: K. Y. Srinivasan Reviewed-by: Long Li Signed-off-by: James Bottomley --- diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index f56b89a6ef95..3fba42ad9fb8 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -349,11 +349,14 @@ 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. */ @@ -858,7 +861,7 @@ 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