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From: Julia Lawall <julia@diku.dk>
To: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: kernel-janitors@vger.kernel.org, linux-media@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH 2/6] drivers/media/dvb/dvb-usb/usb-urb.c: adjust array index
Date: Thu, 28 Jul 2011 12:46:02 +0000	[thread overview]
Message-ID: <1311857165-14780-3-git-send-email-julia@diku.dk> (raw)
In-Reply-To: <1311857165-14780-1-git-send-email-julia@diku.dk>

From: Julia Lawall <julia@diku.dk>

Convert array index from the loop bound to the loop index.

A simplified version of the semantic patch that fixes this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression e1,e2,ar;
@@

for(e1 = 0; e1 < e2; e1++) { <...
  ar[
- e2
+ e1
  ]
  ...> }
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>

---
Not tested.

 drivers/media/dvb/dvb-usb/usb-urb.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff -u -p a/drivers/media/dvb/dvb-usb/usb-urb.c b/drivers/media/dvb/dvb-usb/usb-urb.c
--- a/drivers/media/dvb/dvb-usb/usb-urb.c
+++ b/drivers/media/dvb/dvb-usb/usb-urb.c
@@ -148,7 +148,7 @@ static int usb_bulk_urb_init(struct usb_
 		if (!stream->urb_list[i]) {
 			deb_mem("not enough memory for urb_alloc_urb!.\n");
 			for (j = 0; j < i; j++)
-				usb_free_urb(stream->urb_list[i]);
+				usb_free_urb(stream->urb_list[j]);
 			return -ENOMEM;
 		}
 		usb_fill_bulk_urb( stream->urb_list[i], stream->udev,
@@ -181,7 +181,7 @@ static int usb_isoc_urb_init(struct usb_
 		if (!stream->urb_list[i]) {
 			deb_mem("not enough memory for urb_alloc_urb!\n");
 			for (j = 0; j < i; j++)
-				usb_free_urb(stream->urb_list[i]);
+				usb_free_urb(stream->urb_list[j]);
 			return -ENOMEM;
 		}
 


  parent reply	other threads:[~2011-07-28 12:46 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-28 12:46 [PATCH 0/6] adjust array index Julia Lawall
2011-07-28 12:46 ` [PATCH 1/6] net: " Julia Lawall
2011-08-01  9:27   ` David Miller
2011-07-28 12:46 ` Julia Lawall [this message]
2011-07-28 12:46 ` [PATCH 3/6] drivers/net/niu.c: " Julia Lawall
     [not found]   ` <1311857165-14780-4-git-send-email-julia-dAYI7NvHqcQ@public.gmane.org>
2011-08-01  9:27     ` David Miller
2011-07-28 12:46 ` [PATCH 4/6] drivers/staging/ath6kl/miscdrv/ar3kps/ar3kpsparser.c: " Julia Lawall
2011-07-28 12:46 ` [PATCH 5/6] sound/core/pcm_compat.c: " Julia Lawall
2011-07-28 13:13   ` Takashi Iwai
2011-07-28 17:03 ` [PATCH 0/6] " Joe Perches

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