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path: root/drivers/staging/goldfish/goldfish_audio.c
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Diffstat (limited to 'drivers/staging/goldfish/goldfish_audio.c')
-rw-r--r--drivers/staging/goldfish/goldfish_audio.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/staging/goldfish/goldfish_audio.c b/drivers/staging/goldfish/goldfish_audio.c
index 23a206d59790..b360d07564b1 100644
--- a/drivers/staging/goldfish/goldfish_audio.c
+++ b/drivers/staging/goldfish/goldfish_audio.c
@@ -36,6 +36,7 @@ MODULE_VERSION("1.0");
struct goldfish_audio {
char __iomem *reg_base;
int irq;
+ /* lock protects access to buffer_status and to device registers */
spinlock_t lock;
wait_queue_head_t wait;