These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / sound / core / seq / seq_memory.c

diff --git a/kernel/sound/core/seq/seq_memory.c b/kernel/sound/core/seq/seq_memory.c
index 8010766..c850345 100644 (file)
--- a/kernel/sound/core/seq/seq_memory.c
+++ b/kernel/sound/core/seq/seq_memory.c
@@ -383,15 +383,20 @@ int snd_seq_pool_init(struct snd_seq_pool *pool)
 
        if (snd_BUG_ON(!pool))
                return -EINVAL;
-       if (pool->ptr)                  /* should be atomic? */
-               return 0;
 
-       pool->ptr = vmalloc(sizeof(struct snd_seq_event_cell) * pool->size);
-       if (!pool->ptr)
+       cellptr = vmalloc(sizeof(struct snd_seq_event_cell) * pool->size);
+       if (!cellptr)
                return -ENOMEM;
 
        /* add new cells to the free cell list */
        spin_lock_irqsave(&pool->lock, flags);
+       if (pool->ptr) {
+               spin_unlock_irqrestore(&pool->lock, flags);
+               vfree(cellptr);
+               return 0;
+       }
+
+       pool->ptr = cellptr;
        pool->free = NULL;
 
        for (cell = 0; cell < pool->size; cell++) {