There is an error path that checks whether the return value is
-EPROBE_DEFER to decide whether to print the error message: that
is exactly open-coding dev_err_probe(), so, switch to that.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 drivers/firmware/mtk-adsp-ipc.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/firmware/mtk-adsp-ipc.c b/drivers/firmware/mtk-adsp-ipc.c
index a762302978de..fdb083f42ebf 100644
--- a/drivers/firmware/mtk-adsp-ipc.c
+++ b/drivers/firmware/mtk-adsp-ipc.c
@@ -95,10 +95,9 @@ static int mtk_adsp_ipc_probe(struct platform_device *pdev)
 		adsp_chan->idx = i;
 		adsp_chan->ch = mbox_request_channel_byname(cl, adsp_mbox_ch_names[i]);
 		if (IS_ERR(adsp_chan->ch)) {
-			ret = PTR_ERR(adsp_chan->ch);
-			if (ret != -EPROBE_DEFER)
-				dev_err(dev, "Failed to request mbox chan %s ret %d\n",
-					adsp_mbox_ch_names[i], ret);
+			ret = dev_err_probe(dev, PTR_ERR(adsp_chan->ch),
+					    "Failed to request mbox channel %s\n",
+					    adsp_mbox_ch_names[i]);
 
 			for (j = 0; j < i; j++) {
 				adsp_chan = &adsp_ipc->chans[j];
-- 
2.46.0

Hello

On Thu, Sep 19, 2024 at 02:02:08PM +0200, AngeloGioacchino Del Regno wrote:
> There is an error path that checks whether the return value is
> -EPROBE_DEFER to decide whether to print the error message: that
> is exactly open-coding dev_err_probe(), so, switch to that.
> 
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
> ---
>  drivers/firmware/mtk-adsp-ipc.c | 7 +++----
>  1 file changed, 3 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/firmware/mtk-adsp-ipc.c b/drivers/firmware/mtk-adsp-ipc.c
> index a762302978de..fdb083f42ebf 100644
> --- a/drivers/firmware/mtk-adsp-ipc.c
> +++ b/drivers/firmware/mtk-adsp-ipc.c
> @@ -95,10 +95,9 @@ static int mtk_adsp_ipc_probe(struct platform_device *pdev)
>  		adsp_chan->idx = i;
>  		adsp_chan->ch = mbox_request_channel_byname(cl, adsp_mbox_ch_names[i]);
>  		if (IS_ERR(adsp_chan->ch)) {
> -			ret = PTR_ERR(adsp_chan->ch);
> -			if (ret != -EPROBE_DEFER)
> -				dev_err(dev, "Failed to request mbox chan %s ret %d\n",
> -					adsp_mbox_ch_names[i], ret);
> +			ret = dev_err_probe(dev, PTR_ERR(adsp_chan->ch),
> +					    "Failed to request mbox channel %s\n",
> +					    adsp_mbox_ch_names[i]);
>  

Looks good to me:

Acked-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>

Best regards
Uwe