[SCSI] stex: add value check in hard reset routine

During hard reset, an all-1 value from PCI_COMMAND should be invalid.

Signed-off-by: Ed Lin <ed.lin@promise.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c
index ea0d824..92dbac0 100644 (file)
--- a/drivers/scsi/stex.c
+++ b/drivers/scsi/stex.c
@@ -1041,7 +1041,7 @@ static void stex_hard_reset(struct st_hba *hba)
 
        for (i = 0; i < MU_MAX_DELAY_TIME; i++) {
                pci_read_config_word(hba->pdev, PCI_COMMAND, &pci_cmd);
-               if (pci_cmd & PCI_COMMAND_MASTER)
+               if (pci_cmd != 0xffff && (pci_cmd & PCI_COMMAND_MASTER))
                        break;
                msleep(1);
        }