leds: 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

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Cc: Bryan Wu <bryan.wu@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/leds/leds-mc13783.c b/drivers/leds/leds-mc13783.c
index 8bc4915415509d6e2456a0d4ea46446bf9188eca..4cc6a2e3df3487e1ce971b407bd56095d84b9b54 100644 (file)
--- a/drivers/leds/leds-mc13783.c
+++ b/drivers/leds/leds-mc13783.c
@@ -280,7 +280,7 @@ static int __devinit mc13783_led_probe(struct platform_device *pdev)
                return -EINVAL;
        }
 
-       led = kzalloc(sizeof(*led) * pdata->num_leds, GFP_KERNEL);
+       led = kcalloc(pdata->num_leds, sizeof(*led), GFP_KERNEL);
        if (led == NULL) {
                dev_err(&pdev->dev, "failed to alloc memory\n");
                return -ENOMEM;