From: Thomas Meyer <thomas@m3y3r.de>
To: isely@pobox.com, mchehab@infradead.org,
linux-media@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] [media] pvrusb2: Use kcalloc instead of kzalloc to allocate array
Date: Tue, 29 Nov 2011 22:08:00 +0100 [thread overview]
Message-ID: <1322600880.1534.313.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/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c 2011-11-13 11:07:30.836890817 +0100
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c 2011-11-28 19:57:31.228511987 +0100
@@ -2546,8 +2546,9 @@ struct pvr2_hdw *pvr2_hdw_create(struct
}
/* Define and configure additional controls from cx2341x module. */
- hdw->mpeg_ctrl_info = kzalloc(
- sizeof(*(hdw->mpeg_ctrl_info)) * MPEGDEF_COUNT, GFP_KERNEL);
+ hdw->mpeg_ctrl_info = kcalloc(MPEGDEF_COUNT,
+ sizeof(*(hdw->mpeg_ctrl_info)),
+ GFP_KERNEL);
if (!hdw->mpeg_ctrl_info) goto fail;
for (idx = 0; idx < MPEGDEF_COUNT; idx++) {
cptr = hdw->controls + idx + CTRLDEF_COUNT;
reply other threads:[~2011-12-05 17:30 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1322600880.1534.313.camel@localhost.localdomain \
--to=thomas@m3y3r.de \
--cc=isely@pobox.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-media@vger.kernel.org \
--cc=mchehab@infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox