From: Iulia Manda <iulia.manda21@gmail.com>
Date: Tue, 11 Mar 2014 23:28:53 +0000 (+0200)
Subject: staging: unisys: visorutil: Use kzalloc instead of kmalloc with memset
X-Git-Tag: firefly_0821_release~176^2~4193^2~426
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=56116b2b09092565d140c0e72596d67a29dcf89c;p=firefly-linux-kernel-4.4.55.git

staging: unisys: visorutil: Use kzalloc instead of kmalloc with memset

Fix coccinelle warnings of better allocation by using kzalloc.
In these cases, kzalloc is preferred, as kmalloc may fail if it does not find
contiguous memory.

Signed-off-by: Iulia Manda <iulia.manda21@gmail.com>
Acked-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
---

diff --git a/drivers/staging/unisys/visorutil/procobjecttree.c b/drivers/staging/unisys/visorutil/procobjecttree.c
index e4d734edc8f8..9c2dd0c6d6f2 100644
--- a/drivers/staging/unisys/visorutil/procobjecttree.c
+++ b/drivers/staging/unisys/visorutil/procobjecttree.c
@@ -140,10 +140,9 @@ MYPROCTYPE *visor_proc_CreateType(struct proc_dir_entry *procDirRoot,
 		FAIL("procDirRoot cannot be NULL!", 0);
 	if (name == NULL || name[0] == NULL)
 		FAIL("name must contain at least 1 node name!", 0);
-	type = kmalloc(sizeof(MYPROCTYPE), GFP_KERNEL|__GFP_NORETRY);
+	type = kzalloc(sizeof(MYPROCTYPE), GFP_KERNEL | __GFP_NORETRY);
 	if (type == NULL)
 		FAIL("out of memory", 0);
-	memset(type, 0, sizeof(MYPROCTYPE));
 	type->name = name;
 	type->propertyNames = propertyNames;
 	type->nProperties = 0;
@@ -155,13 +154,11 @@ MYPROCTYPE *visor_proc_CreateType(struct proc_dir_entry *procDirRoot,
 			type->nProperties++;
 	while (type->name[type->nNames] != NULL)
 		type->nNames++;
-	type->procDirs = kmalloc((type->nNames+1)*
+	type->procDirs = kzalloc((type->nNames + 1) *
 				 sizeof(struct proc_dir_entry *),
-				 GFP_KERNEL|__GFP_NORETRY);
+				 GFP_KERNEL | __GFP_NORETRY);
 	if (type->procDirs == NULL)
 		FAIL("out of memory", 0);
-	memset(type->procDirs, 0, (type->nNames + 1) *
-	       sizeof(struct proc_dir_entry *));
 	parent = procDirRoot;
 	for (i = 0; i < type->nNames; i++) {
 		type->procDirs[i] = createProcDir(type->name[i], parent);
@@ -218,10 +215,9 @@ MYPROCOBJECT *visor_proc_CreateObject(MYPROCTYPE *type,
 
 	if (type == NULL)
 		FAIL("type cannot be NULL", 0);
-	obj = kmalloc(sizeof(MYPROCOBJECT), GFP_KERNEL | __GFP_NORETRY);
+	obj = kzalloc(sizeof(MYPROCOBJECT), GFP_KERNEL | __GFP_NORETRY);
 	if (obj == NULL)
 		FAIL("out of memory", 0);
-	memset(obj, 0, sizeof(MYPROCOBJECT));
 	obj->type = type;
 	obj->context = context;
 	if (name == NULL) {
@@ -240,19 +236,15 @@ MYPROCOBJECT *visor_proc_CreateObject(MYPROCTYPE *type,
 			RETPTR(NULL);
 	}
 	obj->procDirPropertyContexts =
-		kmalloc((type->nProperties+1)*sizeof(PROCDIRENTRYCONTEXT),
-			GFP_KERNEL|__GFP_NORETRY);
+		kzalloc((type->nProperties + 1) * sizeof(PROCDIRENTRYCONTEXT),
+			GFP_KERNEL | __GFP_NORETRY);
 	if (obj->procDirPropertyContexts == NULL)
 		FAIL("out of memory", 0);
-	memset(obj->procDirPropertyContexts, 0,
-	       (type->nProperties+1)*sizeof(PROCDIRENTRYCONTEXT));
 	obj->procDirProperties =
-		kmalloc((type->nProperties+1) * sizeof(struct proc_dir_entry *),
-			GFP_KERNEL|__GFP_NORETRY);
+		kzalloc((type->nProperties + 1) * sizeof(struct proc_dir_entry *),
+			GFP_KERNEL | __GFP_NORETRY);
 	if (obj->procDirProperties == NULL)
 		FAIL("out of memory", 0);
-	memset(obj->procDirProperties, 0,
-	       (type->nProperties+1) * sizeof(struct proc_dir_entry *));
 	for (i = 0; i < type->nProperties; i++) {
 		obj->procDirPropertyContexts[i].procObject = obj;
 		obj->procDirPropertyContexts[i].propertyIndex = i;