ion: Fix missing mutex_unlock on error path



Fix a scenario where an ion_buffer attempts to grab
a mutex it already has.

Change-Id: Ie274904ef7b077cdb0a65e72b626dd37320c7e75
Signed-off-by: Patrick Daly <pdaly@codeaurora.org>

parent b98e655c

drivers/staging/android/ion/ion.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -364,8 +364,10 @@ static struct sg_table ion_map_dma_buf(struct dma_buf_attachment attachment,
		map_attrs);
		}

		if (count <= 0)
		if (count <= 0) {
		mutex_unlock(&buffer->lock);
		return ERR_PTR(-ENOMEM);
		}

		a->dma_mapped = true;
		mutex_unlock(&buffer->lock);