From: Kevin Corry <corry@ecn.purdue.edu>
To: joe@fib011235813.fsnet.co.uk (Joe Thornber)
Cc: dm-devel@sistina.com, linux-kernel@vger.kernel.org
Subject: [PATCH] dm.c : Check memory allocations
Date: Fri, 27 Dec 2002 16:55:31 -0500 (EST) [thread overview]
Message-ID: <200212272155.gBRLtWD7013508@shay.ecn.purdue.edu> (raw)
Check memory allocations when cloning bio's.
--- linux-2.5.53a/drivers/md/dm.c Mon Dec 23 23:21:04 2002
+++ linux-2.5.53b/drivers/md/dm.c Fri Dec 27 14:50:29 2002
@@ -394,6 +393,10 @@
*/
clone = clone_bio(bio, ci->sector, ci->idx,
bio->bi_vcnt - ci->idx, ci->sector_count);
+ if (!clone) {
+ dec_pending(ci->io, -ENOMEM);
+ return;
+ }
__map_bio(ti, clone, ci->io);
ci->sector_count = 0;
@@ -417,6 +420,10 @@
}
clone = clone_bio(bio, ci->sector, ci->idx, i - ci->idx, len);
+ if (!clone) {
+ dec_pending(ci->io, -ENOMEM);
+ return;
+ }
__map_bio(ti, clone, ci->io);
ci->sector += len;
next reply other threads:[~2002-12-27 21:47 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-27 21:55 Kevin Corry [this message]
2002-12-27 22:00 ` Jeff Garzik
2002-12-27 22:16 ` Kevin Corry
2002-12-30 10:51 ` Joe Thornber
2002-12-31 16:22 ` Kevin Corry
2003-01-02 9:55 ` Joe Thornber
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