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Diffstat (limited to 'drivers/dma/fsl-edma-main.c')
-rw-r--r--drivers/dma/fsl-edma-main.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/dma/fsl-edma-main.c b/drivers/dma/fsl-edma-main.c
index 755a3dc3b0a7..de03148aed0b 100644
--- a/drivers/dma/fsl-edma-main.c
+++ b/drivers/dma/fsl-edma-main.c
@@ -105,7 +105,8 @@ static struct dma_chan *fsl_edma_xlate(struct of_phandle_args *dma_spec,
if (dma_spec->args_count != 2)
return NULL;
- mutex_lock(&fsl_edma->fsl_edma_mutex);
+ guard(mutex)(&fsl_edma->fsl_edma_mutex);
+
list_for_each_entry_safe(chan, _chan, &fsl_edma->dma_dev.channels, device_node) {
if (chan->client_count)
continue;
@@ -124,12 +125,10 @@ static struct dma_chan *fsl_edma_xlate(struct of_phandle_args *dma_spec,
fsl_edma_chan_mux(fsl_chan, fsl_chan->srcid,
true);
- mutex_unlock(&fsl_edma->fsl_edma_mutex);
return chan;
}
}
}
- mutex_unlock(&fsl_edma->fsl_edma_mutex);
return NULL;
}