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A device's fb_info is shared between clients. fb_release() is called when each client is released, not just the last one. Since the fbdev helper needs to release its dma-buf when the last client goes away, it must keep its own reference count. fbmem and fbcon hold different locks while calling fb_release(), so explicit locking is needed. Change-Id: I42cd659f7633adba7c11f407d4b594bd43305d6a Signed-off-by: Greg Hackmann <ghackmann@google.com> |
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| asm-generic | ||
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