arch/frv/mb93090-mb00/pci-frv.c: fix build warning

The build of frv defconfig gives warning:

  arch/frv/mb93090-mb00/pci-frv.c:176:5: warning: ignoring return value of 'pci_assign_resource', declared with attribute warn_unused_result

Just print an error message to silence the warning.  We can not do much
here on error.

Link: http://lkml.kernel.org/r/1484256471-5379-1-git-send-email-sudipm.mukherjee@gmail.com
Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 8 insertions, 3 deletions

diff --git a/arch/frv/mb93090-mb00/pci-frv.c b/arch/frv/mb93090-mb00/pci-frv.c
index 34bb4b13e079..c452ddb5620f 100644
--- a/arch/frv/mb93090-mb00/pci-frv.c
+++ b/arch/frv/mb93090-mb00/pci-frv.c
@@ -147,7 +147,7 @@ static void __init pcibios_allocate_resources(int pass)
 static void __init pcibios_assign_resources(void)
 {
         struct pci_dev *dev = NULL;
-        int idx;
+        int idx, err;
         struct resource *r;
 
         for_each_pci_dev(dev) {
@@ -172,8 +172,13 @@ static void __init pcibios_assign_resources(void)
                          *  the BIOS forgot to do so or because we have decided the old
                          *  address was unusable for some reason.
                          */
-                        if (!r->start && r->end)
-                                pci_assign_resource(dev, idx);
+                        if (!r->start && r->end) {
+                                err = pci_assign_resource(dev, idx);
+                                if (err)
+                                        dev_err(&dev->dev,
+                                                "Failed to assign new address to %d\n",
+                                                idx);
+                        }
                 }
         }
 }