This patch rewrites the arcmsr_define_adapter_type function to precisely check Areca adapter's ID.
This can prevent an unknown adapter being used as a default adapter type by driver.
Signed-off-by: Ching<ching2048@xxxxxxxxxxxx>
---
diff -uprN a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
--- a/drivers/scsi/arcmsr/arcmsr_hba.c 2014-08-01 11:06:34.000000000 +0800
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c 2014-08-01 11:07:44.000000000 +0800
@@ -295,24 +295,43 @@ static int arcmsr_bios_param(struct scsi
return 0;
}
-static void arcmsr_define_adapter_type(struct AdapterControlBlock *acb)
+static bool arcmsr_define_adapter_type(struct AdapterControlBlock *acb)
{
struct pci_dev *pdev = acb->pdev;
u16 dev_id;
+
pci_read_config_word(pdev, PCI_DEVICE_ID, &dev_id);
acb->dev_id = dev_id;
switch (dev_id) {
- case 0x1880: {
+ case 0x1880:
acb->adapter_type = ACB_ADAPTER_TYPE_C;
- }
break;
- case 0x1201: {
+ case 0x1200:
+ case 0x1201:
+ case 0x1202:
acb->adapter_type = ACB_ADAPTER_TYPE_B;
- }
break;
-
- default: acb->adapter_type = ACB_ADAPTER_TYPE_A;
+ case 0x1110:
+ case 0x1120:
+ case 0x1130:
+ case 0x1160:
+ case 0x1170:
+ case 0x1210:
+ case 0x1220:
+ case 0x1230:
+ case 0x1260:
+ case 0x1270:
+ case 0x1280:
+ case 0x1380:
+ case 0x1381:
+ case 0x1680:
+ acb->adapter_type = ACB_ADAPTER_TYPE_A;
+ break;
+ default:
+ pr_notice("Unknown device ID = 0x%x\n", dev_id);
+ return false;
}
+ return true;
}
static uint8_t arcmsr_hba_wait_msgint_ready(struct AdapterControlBlock *acb)
@@ -714,7 +733,9 @@ static int arcmsr_probe(struct pci_dev *
ACB_F_MESSAGE_WQBUFFER_READED);
acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER;
INIT_LIST_HEAD(&acb->ccb_free_list);
- arcmsr_define_adapter_type(acb);
+ error = arcmsr_define_adapter_type(acb);
+ if (!error)
+ goto pci_release_regs;
error = arcmsr_remap_pciregion(acb);
if(!error){
goto pci_release_regs;
--
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