From: thomas@m3y3r.de (Thomas Meyer)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] [media] v4l: s5p-tv: Use kcalloc instead of kzalloc to allocate array
Date: Tue, 29 Nov 2011 22:08:00 +0100 [thread overview]
Message-ID: <1322600880.1534.314.camel@localhost.localdomain> (raw)
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>
---
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;
reply other threads:[~2011-11-29 21:08 UTC|newest]
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