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 <tho...@m3y3r.de> --- diff -u -p a/drivers/media/video/s5p-tv/hdmi_drv.c b/drivers/media/video/s5p-tv/hdmi_drv.c --- a/drivers/media/video/s5p-tv/hdmi_drv.c 2011-11-13 11:07:31.380232715 +0100 +++ b/drivers/media/video/s5p-tv/hdmi_drv.c 2011-11-28 19:58:21.305922829 +0100 @@ -838,8 +838,8 @@ static int hdmi_resources_init(struct hd dev_err(dev, "failed to get clock 'hdmiphy'\n"); goto fail; } - res->regul_bulk = kzalloc(ARRAY_SIZE(supply) * - sizeof res->regul_bulk[0], GFP_KERNEL); + res->regul_bulk = kcalloc(ARRAY_SIZE(supply), + sizeof(res->regul_bulk[0]), GFP_KERNEL); if (!res->regul_bulk) { dev_err(dev, "failed to get memory for regulators\n"); goto fail; -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
