[PATCH] s390: kzalloc() conversion in arch/s390

Convert all kmalloc + memset sequences in arch/s390 to kzalloc usage.
Signed-off-by: NEric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

arch/s390/appldata/appldata_base.c

@@ -531,12 +531,11 @@ int appldata_register_ops(struct appldata_ops *ops)
 		P_ERROR("ctl_nr %i already in use!\n", ops->ctl_nr);
 		return -EBUSY;
 	}
-	ops->ctl_table = kmalloc(4*sizeof(struct ctl_table), GFP_KERNEL);
+	ops->ctl_table = kzalloc(4*sizeof(struct ctl_table), GFP_KERNEL);
 	if (ops->ctl_table == NULL) {
 		P_ERROR("Not enough memory for %s ctl_table!\n", ops->name);
 		return -ENOMEM;
 	}
-	memset(ops->ctl_table, 0, 4*sizeof(struct ctl_table));
 
 	spin_lock(&appldata_ops_lock);
 	list_for_each(lh, &appldata_ops_list) {

arch/s390/kernel/debug.c

@@ -204,16 +204,13 @@ debug_areas_alloc(int pages_per_area, int nr_areas)
 			goto fail_malloc_areas2;
 		}
 		for(j = 0; j < pages_per_area; j++) {
-			areas[i][j] = (debug_entry_t*)kmalloc(PAGE_SIZE,
-						GFP_KERNEL);
+			areas[i][j] = kzalloc(PAGE_SIZE, GFP_KERNEL);
 			if(!areas[i][j]) {
 				for(j--; j >=0 ; j--) {
 					kfree(areas[i][j]);
 				}
 				kfree(areas[i]);
 				goto fail_malloc_areas2;
-			} else {
-				memset(areas[i][j],0,PAGE_SIZE);
 			}
 		}
 	}
@@ -249,14 +246,12 @@ debug_info_alloc(char *name, int pages_per_area, int nr_areas, int buf_size,
 	rc = (debug_info_t*) kmalloc(sizeof(debug_info_t), GFP_KERNEL);
 	if(!rc)
 		goto fail_malloc_rc;
-	rc->active_entries = (int*)kmalloc(nr_areas * sizeof(int), GFP_KERNEL);
+	rc->active_entries = kcalloc(nr_areas, sizeof(int), GFP_KERNEL);
 	if(!rc->active_entries)
 		goto fail_malloc_active_entries;
-	memset(rc->active_entries, 0, nr_areas * sizeof(int));
-	rc->active_pages = (int*)kmalloc(nr_areas * sizeof(int), GFP_KERNEL);
+	rc->active_pages = kcalloc(nr_areas, sizeof(int), GFP_KERNEL);
 	if(!rc->active_pages)
 		goto fail_malloc_active_pages;
-	memset(rc->active_pages, 0, nr_areas * sizeof(int));
 	if((mode == ALL_AREAS) && (pages_per_area != 0)){
 		rc->areas = debug_areas_alloc(pages_per_area, nr_areas);
 		if(!rc->areas)