linux-kernel - [PATCH 03/11] mmc: dw_mmc-zx: Simplify with dev_err

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Date:   Wed,  2 Sep 2020 21:36:50 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Ulf Hansson <ulf.hansson@...aro.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        bcm-kernel-feedback-list@...adcom.com,
        Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
        Jaehoon Chung <jh80.chung@...sung.com>,
        Jun Nie <jun.nie@...aro.org>, Shawn Guo <shawnguo@...nel.org>,
        Paul Cercueil <paul@...pouillou.net>,
        Kevin Hilman <khilman@...libre.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Al Cooper <alcooperx@...il.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Michal Simek <michal.simek@...inx.com>,
        Lars Povlsen <lars.povlsen@...rochip.com>,
        Steen Hegelund <Steen.Hegelund@...rochip.com>,
        Microchip Linux Driver Support <UNGLinuxDriver@...rochip.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Arnd Bergmann <arnd@...db.de>, linux-mmc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-tegra@...r.kernel.org
Cc:     Krzysztof Kozlowski <krzk@...nel.org>
Subject: [PATCH 03/11] mmc: dw_mmc-zx: Simplify with dev_err_probe()

Common pattern of handling deferred probe can be simplified with
dev_err_probe().  Less code and the error value gets printed.

Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
---
 drivers/mmc/host/dw_mmc-zx.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc-zx.c b/drivers/mmc/host/dw_mmc-zx.c
index eada648b27ec..d9e483432a61 100644
--- a/drivers/mmc/host/dw_mmc-zx.c
+++ b/drivers/mmc/host/dw_mmc-zx.c
@@ -155,7 +155,6 @@ static int dw_mci_zx_parse_dt(struct dw_mci *host)
 	struct device_node *node;
 	struct dw_mci_zx_priv_data *priv;
 	struct regmap *sysc_base;
-	int ret;
 
 	/* syscon is needed only by emmc */
 	node = of_parse_phandle(np, "zte,aon-syscon", 0);
@@ -163,13 +162,9 @@ static int dw_mci_zx_parse_dt(struct dw_mci *host)
 		sysc_base = syscon_node_to_regmap(node);
 		of_node_put(node);
 
-		if (IS_ERR(sysc_base)) {
-			ret = PTR_ERR(sysc_base);
-			if (ret != -EPROBE_DEFER)
-				dev_err(host->dev, "Can't get syscon: %d\n",
-					ret);
-			return ret;
-		}
+		if (IS_ERR(sysc_base))
+			return dev_err_probe(host->dev, PTR_ERR(sysc_base),
+					     "Can't get syscon\n");
 	} else {
 		return 0;
 	}
-- 
2.17.1