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authorRusty Russell <rusty@rustcorp.com.au>2013-07-15 11:24:08 +0930
committerRusty Russell <rusty@rustcorp.com.au>2013-07-15 11:25:05 +0930
commit6b4f2b56a48c8ea9775bd2b29681725d4474367a (patch)
treebfafbd5af394d8d40064d51696ef4a0e3b8dd505 /mm/oom_kill.c
parent8a1d41cfeaf59a07acc7b1b3620ad6aa5cf47dc2 (diff)
downloadlinux-6b4f2b56a48c8ea9775bd2b29681725d4474367a.tar.gz
mm/oom_kill: remove weird use of ERR_PTR()/PTR_ERR().
The normal expectation for ERR_PTR() is to put a negative errno into a
pointer.  oom_kill puts the magic -1 in the result (and has since
pre-git), which is probably clearer with an explicit cast.

Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'mm/oom_kill.c')
-rw-r--r--mm/oom_kill.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 79e451a78c9e..98e75f2ac7bc 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -288,7 +288,7 @@ enum oom_scan_t oom_scan_process_thread(struct task_struct *task,
 
 /*
  * Simple selection loop. We chose the process with the highest
- * number of 'points'.
+ * number of 'points'.  Returns -1 on scan abort.
  *
  * (not docbooked, we don't want this one cluttering up the manual)
  */
@@ -314,7 +314,7 @@ static struct task_struct *select_bad_process(unsigned int *ppoints,
 			continue;
 		case OOM_SCAN_ABORT:
 			rcu_read_unlock();
-			return ERR_PTR(-1UL);
+			return (struct task_struct *)(-1UL);
 		case OOM_SCAN_OK:
 			break;
 		};
@@ -657,7 +657,7 @@ void out_of_memory(struct zonelist *zonelist, gfp_t gfp_mask,
 		dump_header(NULL, gfp_mask, order, NULL, mpol_mask);
 		panic("Out of memory and no killable processes...\n");
 	}
-	if (PTR_ERR(p) != -1UL) {
+	if (p != (void *)-1UL) {
 		oom_kill_process(p, gfp_mask, order, points, totalpages, NULL,
 				 nodemask, "Out of memory");
 		killed = 1;