[SCSI] fusion: honour return value of pci_enable_device() in mpt_resume()

Honour the return value of pci_enable_device(), which
seems to be a desirable thing to do:

  2.6.20-rc4
  gcc (GCC) 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)

    CC [M]  drivers/message/fusion/mptbase.o
    drivers/message/fusion/mptbase.c: In function `mpt_resume':
    drivers/message/fusion/mptbase.c:1541: warning: ignoring return value
    of `pci_enable_device', declared with attribute warn_unused_result

It also in turn has mptscsih_resume() honour the return value of
mpt_resume()

I'm not sure about the handling of the other potential error cases
in mpt_resume(), of which there appear to be many. But this does
seem to be a good start.

Signed-off-by: Simon Horman <horms@verge.net.au>
Acked-by: "Moore, Eric" <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index 0a2d7db7b634..97471af4309c 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -1531,6 +1531,7 @@ mpt_resume(struct pci_dev *pdev)
         MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
         u32 device_state = pdev->current_state;
         int recovery_state;
+        int err;
 
         printk(MYIOC_s_INFO_FMT
         "pci-resume: pdev=0x%p, slot=%s, Previous operating state [D%d]\n",
@@ -1538,7 +1539,9 @@ mpt_resume(struct pci_dev *pdev)
 
         pci_set_power_state(pdev, 0);
         pci_restore_state(pdev);
-        pci_enable_device(pdev);
+        err = pci_enable_device(pdev);
+        if (err)
+                return err;
 
         /* enable interrupts */
         CHIPREG_WRITE32(&ioc->chip->IntMask, MPI_HIM_DIM);