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authorShivasharan S <shivasharan.srikanteshwara@broadcom.com>2017-08-23 04:47:04 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-09-24 22:29:17 +0200
commitfcbd1bed81f8de0c20e8b957e5a99a4e259bbd11 (patch)
tree1d86b7c120d1fe04e950aa2090222e53f4ebbf07
parent800b2515b5d1854241191681cbd653fddc812aff (diff)
downloadarm64-stable-rc-fcbd1bed81f8de0c20e8b957e5a99a4e259bbd11.tar.gz
scsi: megaraid_sas: Return pended IOCTLs with cmd_status MFI_STAT_WRONG_STATE in case adapter is dead
commit eb3fe263a48b0d27b229c213929c4cb3b1b39a0f upstream. After a kill adapter, since the cmd_status is not set, the IOCTLs will be hung in driver resulting in application hang. Set cmd_status MFI_STAT_WRONG_STATE when completing pended IOCTLs. Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/scsi/megaraid/megaraid_sas_base.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 42ddc4d592fc..6835bae33ec4 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -1824,9 +1824,12 @@ static void megasas_complete_outstanding_ioctls(struct megasas_instance *instanc
if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) {
cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
if (cmd_mfi->sync_cmd &&
- cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)
+ (cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)) {
+ cmd_mfi->frame->hdr.cmd_status =
+ MFI_STAT_WRONG_STATE;
megasas_complete_cmd(instance,
cmd_mfi, DID_OK);
+ }
}
}
} else {