staging:android:ion: Fix comparison with NULL

This patch fixes the following comparison with NULL issues:

CHECK: Comparison to NULL could be written "compatible[i].name"
+	for (i = 0; compatible[i].name != NULL; i++) {

CHECK: Comparison to NULL could be written "!compatible[i].name"
+	if (compatible[i].name == NULL)
Signed-off-by: NYannis Damigos <giannis.damigos@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/android/ion/ion_of.c

@@ -31,12 +31,12 @@ static int ion_parse_dt_heap_common(struct device_node *heap_node,
 {
 	int i;
 
-	for (i = 0; compatible[i].name != NULL; i++) {
+	for (i = 0; compatible[i].name; i++) {
 		if (of_device_is_compatible(heap_node, compatible[i].compat))
 			break;
 	}
 
-	if (compatible[i].name == NULL)
+	if (!compatible[i].name)
 		return -ENODEV;
 
 	heap->id = compatible[i].heap_id;