linux-kernel - [PATCH 4/5] MMC: OMAP: fix deferred probe

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20240223181439.1099750-5-aaro.koskinen@iki.fi>
Date: Fri, 23 Feb 2024 20:14:38 +0200
From: Aaro Koskinen <aaro.koskinen@....fi>
To: Tony Lindgren <tony@...mide.com>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	linux-omap@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
	Aaro Koskinen <aaro.koskinen@....fi>
Subject: [PATCH 4/5] MMC: OMAP: fix deferred probe

After a deferred probe, GPIO descriptor lookup will fail with EBUSY. Fix by
using managed descriptors.

Fixes: e519f0bb64ef ("ARM/mmc: Convert old mmci-omap to GPIO descriptors")
Signed-off-by: Aaro Koskinen <aaro.koskinen@....fi>
---
 drivers/mmc/host/omap.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index aa40e1a9dc29..50408771ae01 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -1259,18 +1259,18 @@ static int mmc_omap_new_slot(struct mmc_omap_host *host, int id)
 	slot->pdata = &host->pdata->slots[id];
 
 	/* Check for some optional GPIO controls */
-	slot->vsd = gpiod_get_index_optional(host->dev, "vsd",
-					     id, GPIOD_OUT_LOW);
+	slot->vsd = devm_gpiod_get_index_optional(host->dev, "vsd",
+						  id, GPIOD_OUT_LOW);
 	if (IS_ERR(slot->vsd))
 		return dev_err_probe(host->dev, PTR_ERR(slot->vsd),
 				     "error looking up VSD GPIO\n");
-	slot->vio = gpiod_get_index_optional(host->dev, "vio",
-					     id, GPIOD_OUT_LOW);
+	slot->vio = devm_gpiod_get_index_optional(host->dev, "vio",
+						  id, GPIOD_OUT_LOW);
 	if (IS_ERR(slot->vio))
 		return dev_err_probe(host->dev, PTR_ERR(slot->vio),
 				     "error looking up VIO GPIO\n");
-	slot->cover = gpiod_get_index_optional(host->dev, "cover",
-						id, GPIOD_IN);
+	slot->cover = devm_gpiod_get_index_optional(host->dev, "cover",
+						    id, GPIOD_IN);
 	if (IS_ERR(slot->cover))
 		return dev_err_probe(host->dev, PTR_ERR(slot->cover),
 				     "error looking up cover switch GPIO\n");
@@ -1402,8 +1402,8 @@ static int mmc_omap_probe(struct platform_device *pdev)
 	host->dev = &pdev->dev;
 	platform_set_drvdata(pdev, host);
 
-	host->slot_switch = gpiod_get_optional(host->dev, "switch",
-					       GPIOD_OUT_LOW);
+	host->slot_switch = devm_gpiod_get_optional(host->dev, "switch",
+						    GPIOD_OUT_LOW);
 	if (IS_ERR(host->slot_switch))
 		return dev_err_probe(host->dev, PTR_ERR(host->slot_switch),
 				     "error looking up slot switch GPIO\n");
-- 
2.39.2