tracing/trivial: Use kcalloc instead of kzalloc to allocate array

The advantage of kcalloc is, that will prevent integer overflows which could
result from the multiplication of number of elements and size and it is also
a bit nicer to read.

The semantic patch that makes this change is available
in https://lkml.org/lkml/2011/11/25/107

Link: http://lkml.kernel.org/r/1322600880.1534.347.camel@localhost.localdomain

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index cb654542c1a1..43500153dd1e 100644
--- a/kernel/trace/trace_syscalls.c
+++ b/kernel/trace/trace_syscalls.c
@@ -468,8 +468,8 @@ int __init init_ftrace_syscalls(void)
         unsigned long addr;
         int i;
 
-        syscalls_metadata = kzalloc(sizeof(*syscalls_metadata) *
-                                        NR_syscalls, GFP_KERNEL);
+        syscalls_metadata = kcalloc(NR_syscalls, sizeof(*syscalls_metadata),
+                                    GFP_KERNEL);
         if (!syscalls_metadata) {
                 WARN_ON(1);
                 return -ENOMEM;