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From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Cc: jbe@pengutronix.de
Subject: [PATCH] driver: Fix unregister device after device probe failure
Date: Mon,  8 Feb 2016 11:43:13 +0100	[thread overview]
Message-ID: <1454928193-19306-1-git-send-email-s.hauer@pengutronix.de> (raw)

When a device probe fails the device is removed from the active list.
If then the device is unregistered afterwards it is removed from the
active list again resulting in a crash. To fix this initialize the
devices active list entry when removing it from the active list.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 drivers/base/driver.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/base/driver.c b/drivers/base/driver.c
index a70fbb2..c529296 100644
--- a/drivers/base/driver.c
+++ b/drivers/base/driver.c
@@ -101,6 +101,8 @@ int device_probe(struct device_d *dev)
 	}
 
 	list_del(&dev->active);
+	INIT_LIST_HEAD(&dev->active);
+
 	dev_err(dev, "probe failed: %s\n", strerror(-ret));
 
 	return ret;
@@ -258,6 +260,8 @@ static int device_probe_deferred(void)
 
 		list_for_each_entry_safe(dev, tmp, &deferred, active) {
 			list_del(&dev->active);
+			INIT_LIST_HEAD(&dev->active);
+
 			dev_dbg(dev, "re-probe device\n");
 			bus_for_each_driver(dev->bus, drv) {
 				if (match(drv, dev))
-- 
2.7.0.rc3


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             reply	other threads:[~2016-02-08 10:43 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-08 10:43 Sascha Hauer [this message]
2016-02-08 11:33 ` Juergen Borleis
2016-02-08 17:43   ` Robert Schwebel

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