linux-kernel - [PATCH 1/3] regmap: Remove bitrotted module

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-next>] [day] [month] [year] [list]

Message-Id: <1315245250-24292-1-git-send-email-broonie@opensource.wolfsonmicro.com>
Date:	Mon,  5 Sep 2011 10:54:08 -0700
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	linux-kernel@...r.kernel.org
Cc:	Jonathan Cameron <jic23@....ac.uk>,
	patches@...nsource.wolfsonmicro.com,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: [PATCH 1/3] regmap: Remove bitrotted module_put()s

The conversion to per bus type registration functions means we don't need
to do module_get()s to hold the bus types in memory (their users will link
to them) so we removed all those calls. This left module_put() calls in
the cleanup paths which aren't needed and which cause unbalanced puts if
we ever try to unload anything.

Reported-by: Jonathan Cameron <jic23@....ac.uk>
Signed-off-by: Mark Brown <broonie@...nsource.wolfsonmicro.com>
---
 drivers/base/regmap/regmap.c |    5 +----
 1 files changed, 1 insertions(+), 4 deletions(-)

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index fa2bd89..86b1847 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -198,15 +198,13 @@ struct regmap *regmap_init(struct device *dev,
 	map->work_buf = kmalloc(map->format.buf_size, GFP_KERNEL);
 	if (map->work_buf == NULL) {
 		ret = -ENOMEM;
-		goto err_bus;
+		goto err_map;
 	}
 
 	regmap_debugfs_init(map);
 
 	return map;
 
-err_bus:
-	module_put(map->bus->owner);
 err_map:
 	kfree(map);
 err:
@@ -221,7 +219,6 @@ void regmap_exit(struct regmap *map)
 {
 	regmap_debugfs_exit(map);
 	kfree(map->work_buf);
-	module_put(map->bus->owner);
 	kfree(map);
 }
 EXPORT_SYMBOL_GPL(regmap_exit);
-- 
1.7.5.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/