[POWERPC] spufs: Fix state_mutex leaks

[linux-2.6-omap-h63xx.git] / arch / powerpc / platforms / cell / spufs / run.c

diff --git a/arch/powerpc/platforms/cell/spufs/run.c b/arch/powerpc/platforms/cell/spufs/run.c
index b4814c740d8a7b065453e410a3057fd77a4d9b4f..e9c61a1a8f985a2ed7e7b50dad1bcf67a8424cda 100644 (file)
--- a/arch/powerpc/platforms/cell/spufs/run.c
+++ b/arch/powerpc/platforms/cell/spufs/run.c
@@ -354,8 +354,15 @@ long spufs_run_spu(struct spu_context *ctx, u32 *npc, u32 *event)
 
        do {
                ret = spufs_wait(ctx->stop_wq, spu_stopped(ctx, &status));
-               if (unlikely(ret))
+               if (unlikely(ret)) {
+                       /*
+                        * This is nasty: we need the state_mutex for all the
+                        * bookkeeping even if the syscall was interrupted by
+                        * a signal. ewww.
+                        */
+                       mutex_lock(&ctx->state_mutex);
                        break;
+               }
                spu = ctx->spu;
                if (unlikely(test_and_clear_bit(SPU_SCHED_NOTIFY_ACTIVE,
                                                &ctx->sched_flags))) {