tracing: Replace kzalloc with kcalloc

Replace kzalloc() function with its 2-factor argument form, kcalloc().

This patch replaces cases of:

	kzalloc(a * b, gfp)

with:
	kcalloc(a, b, gfp)

This code was detected with the help of Coccinelle.

Link: http://lkml.kernel.org/r/20190115043408.GA23456@embeddedor
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index e0d1d53..a347fac 100644 (file)
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -558,7 +558,7 @@ static int traceprobe_parse_probe_arg_body(char *arg, ssize_t *size,
                         parg->count);
        }
 
-       code = tmp = kzalloc(sizeof(*code) * FETCH_INSN_MAX, GFP_KERNEL);
+       code = tmp = kcalloc(FETCH_INSN_MAX, sizeof(*code), GFP_KERNEL);
        if (!code)
                return -ENOMEM;
        code[FETCH_INSN_MAX - 1].op = FETCH_OP_END;
@@ -637,7 +637,7 @@ static int traceprobe_parse_probe_arg_body(char *arg, ssize_t *size,
        code->op = FETCH_OP_END;
 
        /* Shrink down the code buffer */
-       parg->code = kzalloc(sizeof(*code) * (code - tmp + 1), GFP_KERNEL);
+       parg->code = kcalloc(code - tmp + 1, sizeof(*code), GFP_KERNEL);
        if (!parg->code)
                ret = -ENOMEM;
        else