SCSI: bfa: Chinook quad port 16G FC HBA claim issue

commit dcaf9aed995c2b2a49fb86bbbcfa2f92c797ab5d upstream.

Bfa driver crash is observed while pushing the firmware on to chinook
quad port card due to uninitialized bfi_image_ct2 access which gets
initialized only for CT2 ASIC based cards after request_firmware().
For quard port chinook (CT2 ASIC based), bfi_image_ct2 is not getting
initialized as there is no check for chinook PCI device ID before
request_firmware and instead bfi_image_cb is initialized as it is the
default case for card type check.

This patch includes changes to read the right firmware for quad port chinook.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c
index a5f7690..ae2564d 100644 (file)
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -1824,7 +1824,7 @@ out:
 static u32 *
 bfad_load_fwimg(struct pci_dev *pdev)
 {
-       if (pdev->device == BFA_PCI_DEVICE_ID_CT2) {
+       if (bfa_asic_id_ct2(pdev->device)) {
                if (bfi_image_ct2_size == 0)
                        bfad_read_firmware(pdev, &bfi_image_ct2,
                                &bfi_image_ct2_size, BFAD_FW_FILE_CT2);
@@ -1834,12 +1834,14 @@ bfad_load_fwimg(struct pci_dev *pdev)
                        bfad_read_firmware(pdev, &bfi_image_ct,
                                &bfi_image_ct_size, BFAD_FW_FILE_CT);
                return bfi_image_ct;
-       } else {
+       } else if (bfa_asic_id_cb(pdev->device)) {
                if (bfi_image_cb_size == 0)
                        bfad_read_firmware(pdev, &bfi_image_cb,
                                &bfi_image_cb_size, BFAD_FW_FILE_CB);
                return bfi_image_cb;
        }
+
+       return NULL;
 }
 
 static void