15 files changed, 73 insertions, 99 deletions

diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c
index 3cdd4e962115..1e24ab4ac38c 100644
--- a/drivers/message/fusion/mptfc.c
+++ b/drivers/message/fusion/mptfc.c
@@ -1238,8 +1238,6 @@ mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
         sh->max_id = ioc->pfacts->MaxDevices;
         sh->max_lun = max_lun;
 
-        sh->this_id = ioc->pfacts[0].PortSCSIID;
-
         /* Required entry.
          */
         sh->unique_id = ioc->id;
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index 468480771f13..4d492ba232b0 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -3193,8 +3193,6 @@ mptsas_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 
         sh->transportt = mptsas_transport_template;
 
-        sh->this_id = ioc->pfacts[0].PortSCSIID;
-
         /* Required entry.
          */
         sh->unique_id = ioc->id;
diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
index b109bd8a4d19..c68ef00c2f92 100644
--- a/drivers/message/fusion/mptscsih.c
+++ b/drivers/message/fusion/mptscsih.c
@@ -2451,12 +2451,6 @@ mptscsih_slave_configure(struct scsi_device *sdev)
                     ioc->name, sdev->sdtr, sdev->wdtr,
                     sdev->ppr, sdev->inquiry_len));
 
-        if (sdev->id > sh->max_id) {
-                /* error case, should never happen */
-                scsi_adjust_queue_depth(sdev, 0, 1);
-                goto slave_configure_exit;
-        }
-
         vdevice->configured_lun = 1;
         mptscsih_change_queue_depth(sdev, MPT_SCSI_CMD_PER_DEV_HIGH);
 
@@ -2470,8 +2464,6 @@ mptscsih_slave_configure(struct scsi_device *sdev)
                     ioc->name, vtarget->negoFlags, vtarget->maxOffset,
                     vtarget->minSyncFactor));
 
-slave_configure_exit:
-
         dsprintk(ioc, printk(MYIOC_s_DEBUG_FMT
                 "tagged %d, simple %d, ordered %d\n",
                 ioc->name,sdev->tagged_supported, sdev->simple_tags,
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
index ccfd8aca3765..5d23368a1bce 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.c
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.c
@@ -1348,7 +1348,7 @@ void ibmvscsi_handle_crq(struct viosrp_crq *crq,
 
         del_timer(&evt_struct->timer);
 
-        if (crq->status != VIOSRP_OK && evt_struct->cmnd)
+        if ((crq->status != VIOSRP_OK && crq->status != VIOSRP_OK2) && evt_struct->cmnd)
                 evt_struct->cmnd->result = DID_ERROR << 16;
         if (evt_struct->done)
                 evt_struct->done(evt_struct);
diff --git a/drivers/scsi/ibmvscsi/viosrp.h b/drivers/scsi/ibmvscsi/viosrp.h
index 4c4aadb3e405..204604501ad8 100644
--- a/drivers/scsi/ibmvscsi/viosrp.h
+++ b/drivers/scsi/ibmvscsi/viosrp.h
@@ -65,7 +65,8 @@ enum viosrp_crq_status {
         VIOSRP_VIOLATES_MAX_XFER = 0x2,
         VIOSRP_PARTNER_PANIC = 0x3,
         VIOSRP_DEVICE_BUSY = 0x8,
-        VIOSRP_ADAPTER_FAIL = 0x10
+        VIOSRP_ADAPTER_FAIL = 0x10,
+        VIOSRP_OK2 = 0x99,
 };
 
 struct viosrp_crq {
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 287690853caf..8dd88fc1244a 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -70,6 +70,9 @@ qla2x00_sysfs_write_fw_dump(struct kobject *kobj,
         case 2:
                 qla2x00_alloc_fw_dump(ha);
                 break;
+        case 3:
+                qla2x00_system_error(ha);
+                break;
         }
         return (count);
 }
@@ -886,9 +889,13 @@ qla2x00_get_host_speed(struct Scsi_Host *shost)
 static void
 qla2x00_get_host_port_type(struct Scsi_Host *shost)
 {
-        scsi_qla_host_t *ha = to_qla_parent(shost_priv(shost));
+        scsi_qla_host_t *ha = shost_priv(shost);
         uint32_t port_type = FC_PORTTYPE_UNKNOWN;
 
+        if (ha->parent) {
+                fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
+                return;
+        }
         switch (ha->current_topology) {
         case ISP_CFG_NL:
                 port_type = FC_PORTTYPE_LPORT;
@@ -1172,10 +1179,10 @@ qla24xx_vport_delete(struct fc_vport *fc_vport)
         qla24xx_disable_vp(vha);
         qla24xx_deallocate_vp_id(vha);
 
-        down(&ha->vport_sem);
+        mutex_lock(&ha->vport_lock);
         ha->cur_vport_count--;
         clear_bit(vha->vp_idx, ha->vp_idx_map);
-        up(&ha->vport_sem);
+        mutex_unlock(&ha->vport_lock);
 
         kfree(vha->node_name);
         kfree(vha->port_name);
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 299eccf6cabd..8dd600013bd1 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2457,7 +2457,7 @@ typedef struct scsi_qla_host {
 #define MBX_INTR_WAIT   2
 #define MBX_UPDATE_FLASH_ACTIVE 3
 
-        struct semaphore vport_sem;     /* Virtual port synchronization */
+        struct mutex vport_lock;        /* Virtual port synchronization */
         struct completion mbx_cmd_comp; /* Serialize mbx access */
         struct completion mbx_intr_comp;  /* Used for completion notification */
 
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index f8827068d30f..9b4bebee6879 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -228,6 +228,9 @@ extern int qla24xx_abort_target(struct fc_port *, unsigned int);
 extern int qla24xx_lun_reset(struct fc_port *, unsigned int);
 
 extern int
+qla2x00_system_error(scsi_qla_host_t *);
+
+extern int
 qla2x00_set_serdes_params(scsi_qla_host_t *, uint16_t, uint16_t, uint16_t);
 
 extern int
diff --git a/drivers/scsi/qla2xxx/qla_inline.h b/drivers/scsi/qla2xxx/qla_inline.h
index e9bae27737d1..92fafbdbbaab 100644
--- a/drivers/scsi/qla2xxx/qla_inline.h
+++ b/drivers/scsi/qla2xxx/qla_inline.h
@@ -34,7 +34,11 @@ qla2x00_debounce_register(volatile uint16_t __iomem *addr)
 static inline void
 qla2x00_poll(scsi_qla_host_t *ha)
 {
+        unsigned long flags;
+
+        local_irq_save(flags);
         ha->isp_ops->intr_handler(0, ha);
+        local_irq_restore(flags);
 }
 
 static __inline__ scsi_qla_host_t *
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 5d9a64a7879b..ec63b79f900a 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -272,8 +272,6 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb)
         uint32_t        rscn_entry, host_pid;
         uint8_t         rscn_queue_index;
         unsigned long   flags;
-        scsi_qla_host_t *vha;
-        int             i;
 
         /* Setup to process RIO completion. */
         handle_cnt = 0;
@@ -544,18 +542,10 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb)
                 break;
 
         case MBA_PORT_UPDATE:           /* Port database update */
-                if ((ha->flags.npiv_supported) && (ha->num_vhosts)) {
-                        for_each_mapped_vp_idx(ha, i) {
-                                list_for_each_entry(vha, &ha->vp_list,
-                                    vp_list) {
-                                        if ((mb[3] & 0xff)
-                                            == vha->vp_idx) {
-                                                ha = vha;
-                                                break;
-                                        }
-                                }
-                        }
-                }
+                /* Only handle SCNs for our Vport index. */
+                if (ha->parent && ha->vp_idx != (mb[3] & 0xff))
+                        break;
+
                 /*
                  * If PORT UPDATE is global (recieved LIP_OCCURED/LIP_RESET
                  * event etc. earlier indicating loop is down) then process
@@ -590,18 +580,12 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb)
                 break;
 
         case MBA_RSCN_UPDATE:           /* State Change Registration */
-                if ((ha->flags.npiv_supported) && (ha->num_vhosts)) {
-                        for_each_mapped_vp_idx(ha, i) {
-                                list_for_each_entry(vha, &ha->vp_list,
-                                    vp_list) {
-                                        if ((mb[3] & 0xff)
-                                            == vha->vp_idx) {
-                                                ha = vha;
-                                                break;
-                                        }
-                                }
-                        }
-                }
+                /* Check if the Vport has issued a SCR */
+                if (ha->parent && test_bit(VP_SCR_NEEDED, &ha->vp_flags))
+                        break;
+                /* Only handle SCNs for our Vport index. */
+                if (ha->parent && ha->vp_idx != (mb[3] & 0xff))
+                        break;
 
                 DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n",
                     ha->host_no));
@@ -1132,25 +1116,6 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt)
                                 break;
 
                         qla2x00_handle_sense(sp, sense_data, sense_len);
-
-                        /*
-                         * In case of a Underrun condition, set both the lscsi
-                         * status and the completion status to appropriate
-                         * values.
-                         */
-                        if (resid &&
-                            ((unsigned)(scsi_bufflen(cp) - resid) <
-                             cp->underflow)) {
-                                DEBUG2(qla_printk(KERN_INFO, ha,
-                                    "scsi(%ld:%d:%d:%d): Mid-layer underflow "
-                                    "detected (%x of %x bytes)...returning "
-                                    "error status.\n", ha->host_no,
-                                    cp->device->channel, cp->device->id,
-                                    cp->device->lun, resid,
-                                    scsi_bufflen(cp)));
-
-                                cp->result = DID_ERROR << 16 | lscsi_status;
-                        }
                 } else {
                         /*
                          * If RISC reports underrun and target does not report
@@ -1639,12 +1604,12 @@ qla24xx_msix_rsp_q(int irq, void *dev_id)
         ha = dev_id;
         reg = &ha->iobase->isp24;
 
-        spin_lock(&ha->hardware_lock);
+        spin_lock_irq(&ha->hardware_lock);
 
         qla24xx_process_response_queue(ha);
         WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
 
-        spin_unlock(&ha->hardware_lock);
+        spin_unlock_irq(&ha->hardware_lock);
 
         return IRQ_HANDLED;
 }
@@ -1663,7 +1628,7 @@ qla24xx_msix_default(int irq, void *dev_id)
         reg = &ha->iobase->isp24;
         status = 0;
 
-        spin_lock(&ha->hardware_lock);
+        spin_lock_irq(&ha->hardware_lock);
         do {
                 stat = RD_REG_DWORD(&reg->host_status);
                 if (stat & HSRX_RISC_PAUSED) {
@@ -1716,7 +1681,7 @@ qla24xx_msix_default(int irq, void *dev_id)
                 }
                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
         } while (0);
-        spin_unlock(&ha->hardware_lock);
+        spin_unlock_irq(&ha->hardware_lock);
 
         if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
             (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 210060420809..250d2f604397 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -2303,8 +2303,6 @@ qla24xx_lun_reset(struct fc_port *fcport, unsigned int l)
         return __qla24xx_issue_tmf("Lun", TCF_LUN_RESET, fcport, l);
 }
 
-#if 0
-
 int
 qla2x00_system_error(scsi_qla_host_t *ha)
 {
@@ -2312,7 +2310,7 @@ qla2x00_system_error(scsi_qla_host_t *ha)
         mbx_cmd_t mc;
         mbx_cmd_t *mcp = &mc;
 
-        if (!IS_FWI2_CAPABLE(ha))
+        if (!IS_QLA23XX(ha) && !IS_FWI2_CAPABLE(ha))
                 return QLA_FUNCTION_FAILED;
 
         DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no));
@@ -2334,8 +2332,6 @@ qla2x00_system_error(scsi_qla_host_t *ha)
         return rval;
 }
 
-#endif  /*  0  */
-
 /**
  * qla2x00_set_serdes_params() -
  * @ha: HA context
@@ -2508,7 +2504,7 @@ qla2x00_enable_fce_trace(scsi_qla_host_t *ha, dma_addr_t fce_dma,
                 if (mb)
                         memcpy(mb, mcp->mb, 8 * sizeof(*mb));
                 if (dwords)
-                        *dwords = mcp->mb[6];
+                        *dwords = buffers;
         }
 
         return rval;
@@ -2807,9 +2803,9 @@ qla24xx_control_vp(scsi_qla_host_t *vha, int cmd)
          */
         map = (vp_index - 1) / 8;
         pos = (vp_index - 1) & 7;
-        down(&ha->vport_sem);
+        mutex_lock(&ha->vport_lock);
         vce->vp_idx_map[map] |= 1 << pos;
-        up(&ha->vport_sem);
+        mutex_unlock(&ha->vport_lock);
 
         rval = qla2x00_issue_iocb(ha, vce, vce_dma, 0);
         if (rval != QLA_SUCCESS) {
diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c
index f2b04979e5f0..62a3ad6e8ecb 100644
--- a/drivers/scsi/qla2xxx/qla_mid.c
+++ b/drivers/scsi/qla2xxx/qla_mid.c
@@ -32,12 +32,12 @@ qla24xx_allocate_vp_id(scsi_qla_host_t *vha)
         scsi_qla_host_t *ha = vha->parent;
 
         /* Find an empty slot and assign an vp_id */
-        down(&ha->vport_sem);
+        mutex_lock(&ha->vport_lock);
         vp_id = find_first_zero_bit(ha->vp_idx_map, ha->max_npiv_vports + 1);
         if (vp_id > ha->max_npiv_vports) {
                 DEBUG15(printk ("vp_id %d is bigger than max-supported %d.\n",
                     vp_id, ha->max_npiv_vports));
-                up(&ha->vport_sem);
+                mutex_unlock(&ha->vport_lock);
                 return vp_id;
         }
 
@@ -45,7 +45,7 @@ qla24xx_allocate_vp_id(scsi_qla_host_t *vha)
         ha->num_vhosts++;
         vha->vp_idx = vp_id;
         list_add_tail(&vha->vp_list, &ha->vp_list);
-        up(&ha->vport_sem);
+        mutex_unlock(&ha->vport_lock);
         return vp_id;
 }
 
@@ -55,12 +55,12 @@ qla24xx_deallocate_vp_id(scsi_qla_host_t *vha)
         uint16_t vp_id;
         scsi_qla_host_t *ha = vha->parent;
 
-        down(&ha->vport_sem);
+        mutex_lock(&ha->vport_lock);
         vp_id = vha->vp_idx;
         ha->num_vhosts--;
         clear_bit(vp_id, ha->vp_idx_map);
         list_del(&vha->vp_list);
-        up(&ha->vport_sem);
+        mutex_unlock(&ha->vport_lock);
 }
 
 static scsi_qla_host_t *
@@ -145,9 +145,9 @@ qla24xx_enable_vp(scsi_qla_host_t *vha)
         }
 
         /* Initialize the new vport unless it is a persistent port */
-        down(&ha->vport_sem);
+        mutex_lock(&ha->vport_lock);
         ret = qla24xx_modify_vp_config(vha);
-        up(&ha->vport_sem);
+        mutex_unlock(&ha->vport_lock);
 
         if (ret != QLA_SUCCESS) {
                 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
@@ -406,6 +406,7 @@ qla24xx_create_vhost(struct fc_vport *fc_vport)
         INIT_LIST_HEAD(&vha->list);
         INIT_LIST_HEAD(&vha->fcports);
         INIT_LIST_HEAD(&vha->vp_fcports);
+        INIT_LIST_HEAD(&vha->work_list);
 
         vha->dpc_flags = 0L;
         set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
@@ -437,10 +438,10 @@ qla24xx_create_vhost(struct fc_vport *fc_vport)
         vha->flags.init_done = 1;
         num_hosts++;
 
-        down(&ha->vport_sem);
+        mutex_lock(&ha->vport_lock);
         set_bit(vha->vp_idx, ha->vp_idx_map);
         ha->cur_vport_count++;
-        up(&ha->vport_sem);
+        mutex_unlock(&ha->vport_lock);
 
         return vha;
 
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 3223fd16bcfe..48eaa3bb5433 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -10,6 +10,7 @@
 #include <linux/vmalloc.h>
 #include <linux/delay.h>
 #include <linux/kthread.h>
+#include <linux/mutex.h>
 
 #include <scsi/scsi_tcq.h>
 #include <scsi/scsicam.h>
@@ -1631,7 +1632,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
         /* load the F/W, read paramaters, and init the H/W */
         ha->instance = num_hosts;
 
-        init_MUTEX(&ha->vport_sem);
+        mutex_init(&ha->vport_lock);
         init_completion(&ha->mbx_cmd_comp);
         complete(&ha->mbx_cmd_comp);
         init_completion(&ha->mbx_intr_comp);
@@ -2156,13 +2157,14 @@ static int
 qla2x00_post_work(struct scsi_qla_host *ha, struct qla_work_evt *e, int locked)
 {
         unsigned long flags;
+        scsi_qla_host_t *pha = to_qla_parent(ha);
 
         if (!locked)
-                spin_lock_irqsave(&ha->hardware_lock, flags);
+                spin_lock_irqsave(&pha->hardware_lock, flags);
         list_add_tail(&e->list, &ha->work_list);
         qla2xxx_wake_dpc(ha);
         if (!locked)
-                spin_unlock_irqrestore(&ha->hardware_lock, flags);
+                spin_unlock_irqrestore(&pha->hardware_lock, flags);
         return QLA_SUCCESS;
 }
 
@@ -2202,12 +2204,13 @@ static void
 qla2x00_do_work(struct scsi_qla_host *ha)
 {
         struct qla_work_evt *e;
+        scsi_qla_host_t *pha = to_qla_parent(ha);
 
-        spin_lock_irq(&ha->hardware_lock);
+        spin_lock_irq(&pha->hardware_lock);
         while (!list_empty(&ha->work_list)) {
                 e = list_entry(ha->work_list.next, struct qla_work_evt, list);
                 list_del_init(&e->list);
-                spin_unlock_irq(&ha->hardware_lock);
+                spin_unlock_irq(&pha->hardware_lock);
 
                 switch (e->type) {
                 case QLA_EVT_AEN:
@@ -2221,9 +2224,9 @@ qla2x00_do_work(struct scsi_qla_host *ha)
                 }
                 if (e->flags & QLA_EVT_FLAG_FREE)
                         kfree(e);
-                spin_lock_irq(&ha->hardware_lock);
+                spin_lock_irq(&pha->hardware_lock);
         }
-        spin_unlock_irq(&ha->hardware_lock);
+        spin_unlock_irq(&pha->hardware_lock);
 }
 
 /**************************************************************************
@@ -2634,7 +2637,7 @@ qla2x00_timer(scsi_qla_host_t *ha)
 #define FW_FILE_ISP24XX "ql2400_fw.bin"
 #define FW_FILE_ISP25XX "ql2500_fw.bin"
 
-static DECLARE_MUTEX(qla_fw_lock);
+static DEFINE_MUTEX(qla_fw_lock);
 
 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
@@ -2665,7 +2668,7 @@ qla2x00_request_firmware(scsi_qla_host_t *ha)
                 blob = &qla_fw_blobs[FW_ISP25XX];
         }
 
-        down(&qla_fw_lock);
+        mutex_lock(&qla_fw_lock);
         if (blob->fw)
                 goto out;
 
@@ -2678,7 +2681,7 @@ qla2x00_request_firmware(scsi_qla_host_t *ha)
         }
 
 out:
-        up(&qla_fw_lock);
+        mutex_unlock(&qla_fw_lock);
         return blob;
 }
 
@@ -2687,11 +2690,11 @@ qla2x00_release_firmware(void)
 {
         int idx;
 
-        down(&qla_fw_lock);
+        mutex_lock(&qla_fw_lock);
         for (idx = 0; idx < FW_BLOBS; idx++)
                 if (qla_fw_blobs[idx].fw)
                         release_firmware(qla_fw_blobs[idx].fw);
-        up(&qla_fw_lock);
+        mutex_unlock(&qla_fw_lock);
 }
 
 static pci_ers_result_t
@@ -2864,7 +2867,8 @@ qla2x00_module_init(void)
                 return -ENODEV;
         }
 
-        printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
+        printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
+            qla2x00_version_str);
         ret = pci_register_driver(&qla2xxx_pci_driver);
         if (ret) {
                 kmem_cache_destroy(srb_cachep);
diff --git a/drivers/scsi/qla2xxx/qla_version.h b/drivers/scsi/qla2xxx/qla_version.h
index afeae2bfe7eb..d058c8862b35 100644
--- a/drivers/scsi/qla2xxx/qla_version.h
+++ b/drivers/scsi/qla2xxx/qla_version.h
@@ -7,7 +7,7 @@
 /*
  * Driver version
  */
-#define QLA2XXX_VERSION      "8.02.01-k2"
+#define QLA2XXX_VERSION      "8.02.01-k4"
 
 #define QLA_DRIVER_MAJOR_VER    8
 #define QLA_DRIVER_MINOR_VER    2
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 049103f1d16f..93d2b6714453 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -359,7 +359,12 @@ static int scsi_bus_match(struct device *dev, struct device_driver *gendrv)
 
 static int scsi_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
 {
-        struct scsi_device *sdev = to_scsi_device(dev);
+        struct scsi_device *sdev;
+
+        if (dev->type != &scsi_dev_type)
+                return 0;
+
+        sdev = to_scsi_device(dev);
 
         add_uevent_var(env, "MODALIAS=" SCSI_DEVICE_MODALIAS_FMT, sdev->type);
         return 0;