Modify xilinx_dma_child_probe() return documentation to be inline
with implementation i.e. can also return failure value on error.

Fixes: f17e53388e82 ("dmaengine: xilinx: Handle IRQ mapping errors")
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
---
 drivers/dma/xilinx/xilinx_dma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c
index 8cd4e69dc7b4..3b8cfeccf2da 100644
--- a/drivers/dma/xilinx/xilinx_dma.c
+++ b/drivers/dma/xilinx/xilinx_dma.c
@@ -2924,7 +2924,7 @@ static int xilinx_dma_chan_probe(struct xilinx_dma_device *xdev,
  * @xdev: Driver specific device structure
  * @node: Device node
  *
- * Return: 0 always.
+ * Return: '0' on success and failure value on error.
  */
 static int xilinx_dma_child_probe(struct xilinx_dma_device *xdev,
 				    struct device_node *node)
-- 
2.25.1