dmaengine: ipu: use return value of request_irq

Commit - 653e67f7e5: "dmaengine: inherit debug settings from the subsystem
for subdirectories" introduced debug option for subdirectories too
This exposed issue with ipu driver not using return value

For now just warn users about it

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

1 files changed, 10 insertions, 4 deletions

diff --git a/drivers/dma/ipu/ipu_idmac.c b/drivers/dma/ipu/ipu_idmac.c
index 128ca143486d..bbf62927bd72 100644
--- a/drivers/dma/ipu/ipu_idmac.c
+++ b/drivers/dma/ipu/ipu_idmac.c
@@ -1532,11 +1532,17 @@ static int idmac_alloc_chan_resources(struct dma_chan *chan)
 #ifdef DEBUG
         if (chan->chan_id == IDMAC_IC_7) {
                 ic_sof = ipu_irq_map(69);
-                if (ic_sof > 0)
-                        request_irq(ic_sof, ic_sof_irq, 0, "IC SOF", ichan);
+                if (ic_sof > 0) {
+                        ret = request_irq(ic_sof, ic_sof_irq, 0, "IC SOF", ichan);
+                        if (ret)
+                                dev_err(&chan->dev->device, "request irq failed for IC SOF");
+                }
                 ic_eof = ipu_irq_map(70);
-                if (ic_eof > 0)
-                        request_irq(ic_eof, ic_eof_irq, 0, "IC EOF", ichan);
+                if (ic_eof > 0) {
+                        ret = request_irq(ic_eof, ic_eof_irq, 0, "IC EOF", ichan);
+                        if (ret)
+                                dev_err(&chan->dev->device, "request irq failed for IC EOF");
+                }
         }
 #endif