Re: [PATCH] mmc: jz4740: Use dev_err_probe()

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On 3/22/23 02:25, Paul Cercueil wrote:
Le mercredi 22 mars 2023 à 12:18 +0300, Sergei Shtylyov a écrit :
On 3/22/23 12:07 PM, ye.xingchen@xxxxxxxxxx wrote:

From: Ye Xingchen <ye.xingchen@xxxxxxxxxx>

Replace the open-code with dev_err_probe() to simplify the code.

Signed-off-by: Ye Xingchen <ye.xingchen@xxxxxxxxxx>
---
  drivers/mmc/host/jz4740_mmc.c | 5 +----
  1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/mmc/host/jz4740_mmc.c
b/drivers/mmc/host/jz4740_mmc.c
index 698450afa7bb..a6ad03b24add 100644
--- a/drivers/mmc/host/jz4740_mmc.c
+++ b/drivers/mmc/host/jz4740_mmc.c
@@ -232,10 +232,7 @@ static int
jz4740_mmc_acquire_dma_channels(struct jz4740_mmc_host *host)
         if (!IS_ERR(host->dma_tx))
                 return 0;

-       if (PTR_ERR(host->dma_tx) != -ENODEV) {
-               dev_err(dev, "Failed to get dma tx-rx channel\n");
-               return PTR_ERR(host->dma_tx);
-       }
+       return dev_err_probe(dev, PTR_ERR(host->dma_tx), "Failed to
get dma tx-rx channel\n");
    I'm afraid this makes the following code unreachable...
Also, this is not a probe(), so I don't see a point of using
dev_err_probe() here.
The function is only called from probe(), I think it makes sense to use dev_err_probe() here.





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