[PATCH] dm.c : Check memory allocations

From: Kevin Corry (corry@ecn.purdue.edu)
Date: Fri Dec 27 2002 - 16:55:31 EST

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;
-
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This archive was generated by hypermail 2b29 : Tue Dec 31 2002 - 22:00:11 EST