iommu/dmar: Remove redundant ' != 0' when check return code

Usual pattern when we check for return code, which might be negative
errno, is either (ret) or (!ret).

Remove extra ' != 0' from condition.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index 9a44e20d7d8835a3afc76a17feb8ba13f807c659..cbf7763d8091035deb45d2c36a7fc7201e6b4ab0 100644 (file)
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -311,7 +311,7 @@ static int dmar_pci_bus_add_dev(struct dmar_pci_notify_info *info)
                                ((void *)drhd) + drhd->header.length,
                                dmaru->segment,
                                dmaru->devices, dmaru->devices_cnt);
-               if (ret != 0)
+               if (ret)
                        break;
        }
        if (ret >= 0)