linux-kernel - [PATCH v3] mtd: rawnand: mxc: remove __init qualifier from mxcnd_probe

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Message-Id: <1530132464-8210-1-git-send-email-martin@kaiser.cx>
Date:   Wed, 27 Jun 2018 22:47:44 +0200
From:   Martin Kaiser <martin@...ser.cx>
To:     Boris Brezillon <boris.brezillon@...tlin.com>,
        David Woodhouse <dwmw2@...radead.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Fabio Estevam <fabio.estevam@....com>,
        Miquel Raynal <miquel.raynal@...tlin.com>
Cc:     linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Martin Kaiser <martin@...ser.cx>
Subject: [PATCH v3] mtd: rawnand: mxc: remove __init qualifier from mxcnd_probe_dt

Using the sysfs unbind, bind nodes, mxcnd_probe and mxcnd_probe_dt can
potentially be called at any time. After the __init functions are cleaned,
mxcnd_probe_dt is no longer available. Calling it anyway causes a crash.

mxcnd_probe used to be marked as __init, this was removed years ago.
Remove the __init qualifier from from mxcnd_probe_dt as well.

Fixes: 06f255106923 ("mtd: remove use of __devinit")
Signed-off-by: Martin Kaiser <martin@...ser.cx>
---
changes in v3
   - show the first 12 characters of the SHA-1 ID in the Fixes: tag

changes in v2
   - rephrased the commit message
   - added a Fixes: tag

 drivers/mtd/nand/raw/mxc_nand.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/nand/raw/mxc_nand.c b/drivers/mtd/nand/raw/mxc_nand.c
index 26cef218bb43..90cfb5e730aa 100644
--- a/drivers/mtd/nand/raw/mxc_nand.c
+++ b/drivers/mtd/nand/raw/mxc_nand.c
@@ -1686,7 +1686,7 @@ static const struct of_device_id mxcnd_dt_ids[] = {
 };
 MODULE_DEVICE_TABLE(of, mxcnd_dt_ids);
 
-static int __init mxcnd_probe_dt(struct mxc_nand_host *host)
+static int mxcnd_probe_dt(struct mxc_nand_host *host)
 {
 	struct device_node *np = host->dev->of_node;
 	const struct of_device_id *of_id =
@@ -1700,7 +1700,7 @@ static int __init mxcnd_probe_dt(struct mxc_nand_host *host)
 	return 0;
 }
 #else
-static int __init mxcnd_probe_dt(struct mxc_nand_host *host)
+static int mxcnd_probe_dt(struct mxc_nand_host *host)
 {
 	return 1;
 }
-- 
2.1.4