diff options
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/sputrace.c')
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/sputrace.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/sputrace.c b/arch/powerpc/platforms/cell/spufs/sputrace.c index 50cae0cf098..a2460e2e192 100644 --- a/arch/powerpc/platforms/cell/spufs/sputrace.c +++ b/arch/powerpc/platforms/cell/spufs/sputrace.c @@ -80,6 +80,11 @@ static ssize_t sputrace_read(struct file *file, char __user *buf, char tbuf[128]; int width; + /* If we have data ready to return, don't block waiting + * for more */ + if (cnt > 0 && sputrace_used() == 0) + break; + error = wait_event_interruptible(sputrace_wait, sputrace_used() > 0); if (error) |