iommu: fsl_pamu.c: Fix for possible null pointer dereference

There is otherwise a risk of a possible null pointer dereference.

Was largely found by using a static code analysis program called cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Reviewed-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Acked-by: Varun Sethi <Varun.Sethi@freescale.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

diff --git a/drivers/iommu/fsl_pamu.c b/drivers/iommu/fsl_pamu.c
index cba0498..b99dd88 100644 (file)
--- a/drivers/iommu/fsl_pamu.c
+++ b/drivers/iommu/fsl_pamu.c
@@ -592,8 +592,7 @@ found_cpu_node:
                /* advance to next node in cache hierarchy */
                node = of_find_node_by_phandle(*prop);
                if (!node) {
-                       pr_debug("Invalid node for cache hierarchy %s\n",
-                               node->full_name);
+                       pr_debug("Invalid node for cache hierarchy\n");
                        return ~(u32)0;
                }
        }