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-rw-r--r--drivers/dma/amba-pl08x.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c
index 3c2cad5b1165..cd8df7f5b5c8 100644
--- a/drivers/dma/amba-pl08x.c
+++ b/drivers/dma/amba-pl08x.c
@@ -87,6 +87,8 @@
#define DRIVER_NAME "pl08xdmac"
+static struct amba_driver pl08x_amba_driver;
+
/**
* struct vendor_data - vendor-specific config parameters for PL08x derivatives
* @channels: the number of channels available in this variant
@@ -1420,9 +1422,15 @@ static int pl08x_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
bool pl08x_filter_id(struct dma_chan *chan, void *chan_id)
{
- struct pl08x_dma_chan *plchan = to_pl08x_chan(chan);
+ struct pl08x_dma_chan *plchan;
char *name = chan_id;
+ /* Reject channels for devices not bound to this driver */
+ if (chan->device->dev->driver != &pl08x_amba_driver.drv)
+ return false;
+
+ plchan = to_pl08x_chan(chan);
+
/* Check that the channel is not taken! */
if (!strcmp(plchan->name, name))
return true;