Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  powerpc: Fix vio_bus_probe oops on probe error
  powerpc/ibmebus: Restore "name" sysfs attribute on ibmebus devices
  powerpc: Fix /dev/oldmem interface for kdump
  powerpc/spufs: Remove invalid semicolon after if statement
  powerpc/spufs: reference context while dropping state mutex in scheduler
  powerpc/spufs: fix npc setting for NOSCHED contexts

2 files changed, 17 insertions, 9 deletions

diff --git a/arch/powerpc/platforms/cell/spufs/run.c b/arch/powerpc/platforms/cell/spufs/run.c
index f7edba6cb795..c9bb7cfd3dca 100644
--- a/arch/powerpc/platforms/cell/spufs/run.c
+++ b/arch/powerpc/platforms/cell/spufs/run.c
@@ -206,11 +206,6 @@ static int spu_run_init(struct spu_context *ctx, u32 *npc)
 			(SPU_RUNCNTL_RUNNABLE | SPU_RUNCNTL_ISOLATE);
 		if (runcntl == 0)
 			runcntl = SPU_RUNCNTL_RUNNABLE;
-	}
-
-	if (ctx->flags & SPU_CREATE_NOSCHED) {
-		spuctx_switch_state(ctx, SPU_UTIL_USER);
-		ctx->ops->runcntl_write(ctx, runcntl);
 	} else {
 		unsigned long privcntl;
 
@@ -219,9 +214,15 @@ static int spu_run_init(struct spu_context *ctx, u32 *npc)
 		else
 			privcntl = SPU_PRIVCNTL_MODE_NORMAL;
 
-		ctx->ops->npc_write(ctx, *npc);
 		ctx->ops->privcntl_write(ctx, privcntl);
-		ctx->ops->runcntl_write(ctx, runcntl);
+		ctx->ops->npc_write(ctx, *npc);
+	}
+
+	ctx->ops->runcntl_write(ctx, runcntl);
+
+	if (ctx->flags & SPU_CREATE_NOSCHED) {
+		spuctx_switch_state(ctx, SPU_UTIL_USER);
+	} else {
 
 		if (ctx->state == SPU_STATE_SAVED) {
 			ret = spu_activate(ctx, 0);
diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index 2deeeba7eccf..1c1b627ee843 100644
--- a/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/arch/powerpc/platforms/cell/spufs/sched.c
@@ -641,8 +641,10 @@ static struct spu *find_victim(struct spu_context *ctx)
 
 			if (tmp && tmp->prio > ctx->prio &&
 			    !(tmp->flags & SPU_CREATE_NOSCHED) &&
-			    (!victim || tmp->prio > victim->prio))
+			    (!victim || tmp->prio > victim->prio)) {
 				victim = spu->ctx;
+				get_spu_context(victim);
+			}
 		}
 		mutex_unlock(&cbe_spu_info[node].list_mutex);
 
@@ -658,6 +660,7 @@ static struct spu *find_victim(struct spu_context *ctx)
 			 * look at another context or give up after X retries.
 			 */
 			if (!mutex_trylock(&victim->state_mutex)) {
+				put_spu_context(victim);
 				victim = NULL;
 				goto restart;
 			}
@@ -670,6 +673,7 @@ static struct spu *find_victim(struct spu_context *ctx)
 				 * restart the search.
 				 */
 				mutex_unlock(&victim->state_mutex);
+				put_spu_context(victim);
 				victim = NULL;
 				goto restart;
 			}
@@ -687,6 +691,7 @@ static struct spu *find_victim(struct spu_context *ctx)
 				spu_add_to_rq(victim);
 
 			mutex_unlock(&victim->state_mutex);
+			put_spu_context(victim);
 
 			return spu;
 		}
@@ -985,9 +990,11 @@ static int spusched_thread(void *unused)
 				struct spu_context *ctx = spu->ctx;
 
 				if (ctx) {
+					get_spu_context(ctx);
 					mutex_unlock(mtx);
 					spusched_tick(ctx);
 					mutex_lock(mtx);
+					put_spu_context(ctx);
 				}
 			}
 			mutex_unlock(mtx);
@@ -1030,7 +1037,7 @@ void spuctx_switch_state(struct spu_context *ctx,
 		node = spu->node;
 		if (old_state == SPU_UTIL_USER)
 			atomic_dec(&cbe_spu_info[node].busy_spus);
-		if (new_state == SPU_UTIL_USER);
+		if (new_state == SPU_UTIL_USER)
 			atomic_inc(&cbe_spu_info[node].busy_spus);
 	}
 }