aacraid: IOCTL fix

After getting the platform shutdown command "VM_CloseAll" response from the
firmware, driver was getting configuration IOCTL request from the upper layers
and it sends down to firmware. This causes firmware assert issue.

This patch fixes the firmware assert issue. During the shutdown, if driver
gets commands from the upper layer, driver sends error code to the upper
layers.

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>

diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 9b469a4..43d8076 100644 (file)
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -1222,6 +1222,7 @@ struct aac_dev
        int                     msi_enabled;    /* MSI/MSI-X enabled */
        struct msix_entry       msixentry[AAC_MAX_MSIX];
        struct aac_msix_ctx     aac_msix[AAC_MAX_MSIX]; /* context */
+       u8                      adapter_shutdown;
 };
 
 #define aac_adapter_interrupt(dev) \

diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
index 284b1c5..27432b9 100644 (file)
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -231,6 +231,7 @@ int aac_send_shutdown(struct aac_dev * dev)
        /* FIB should be freed only after getting the response from the F/W */
        if (status != -ERESTARTSYS)
                aac_fib_free(fibctx);
+       dev->adapter_shutdown = 1;
        if ((dev->pdev->device == PMC_DEVICE_S7 ||
             dev->pdev->device == PMC_DEVICE_S8 ||
             dev->pdev->device == PMC_DEVICE_S9) &&
@@ -400,6 +401,7 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
        }
        dev->max_msix = 0;
        dev->msi_enabled = 0;
+       dev->adapter_shutdown = 0;
        if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS,
          0, 0, 0, 0, 0, 0,
          status+0, status+1, status+2, status+3, status+4))
@@ -511,6 +513,7 @@ static void aac_define_int_mode(struct aac_dev *dev)
 
        int i, msi_count;
 
+       msi_count = i = 0;
        /* max. vectors from GET_COMM_PREFERRED_SETTINGS */
        if (dev->max_msix == 0 ||
            dev->pdev->device == PMC_DEVICE_S6 ||

diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index 75c3501..36653a9 100644 (file)
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -713,7 +713,9 @@ static long aac_cfg_ioctl(struct file *file,
                unsigned int cmd, unsigned long arg)
 {
        int ret;
-       if (!capable(CAP_SYS_RAWIO))
+       struct aac_dev *aac;
+       aac = (struct aac_dev *)file->private_data;
+       if (!capable(CAP_SYS_RAWIO) || aac->adapter_shutdown)
                return -EPERM;
        mutex_lock(&aac_mutex);
        ret = aac_do_ioctl(file->private_data, cmd, (void __user *)arg);