linux-kernel - [PATCH 04/20] regmap: Do not skip format initialization

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 for Android: free password hash cracker in your pocket

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

Message-Id: <1439374365-20623-5-git-send-email-mpa@pengutronix.de>
Date:	Wed, 12 Aug 2015 12:12:29 +0200
From:	Markus Pargmann <mpa@...gutronix.de>
To:	Mark Brown <broonie@...nel.org>,
	Jonathan Cameron <jic23@...nel.org>
Cc:	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
	linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, kernel@...gutronix.de,
	Markus Pargmann <mpa@...gutronix.de>
Subject: [PATCH 04/20] regmap: Do not skip format initialization

It is not obvious why format initialization is skipped here. format
functions are used for example in regmap_bulk_read even if bus is not
set. So they are used even if skipped here which leads to null pointer
errors.

This patch adds format initialization for !bus and !bus->read/write.

Signed-off-by: Markus Pargmann <mpa@...gutronix.de>
---
 drivers/base/regmap/regmap.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 4fe5f63edb54..86e94be3c749 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -607,13 +607,11 @@ struct regmap *regmap_init(struct device *dev,
 		map->reg_write = config->reg_write;
 
 		map->defer_caching = false;
-		goto skip_format_initialization;
 	} else if (!bus->read || !bus->write) {
 		map->reg_read = _regmap_bus_reg_read;
 		map->reg_write = _regmap_bus_reg_write;
 
 		map->defer_caching = false;
-		goto skip_format_initialization;
 	} else {
 		map->reg_read  = _regmap_bus_read;
 	}
@@ -784,8 +782,6 @@ struct regmap *regmap_init(struct device *dev,
 		map->reg_write = _regmap_bus_raw_write;
 	}
 
-skip_format_initialization:
-
 	map->range_tree = RB_ROOT;
 	for (i = 0; i < config->num_ranges; i++) {
 		const struct regmap_range_cfg *range_cfg = &config->ranges[i];
-- 
2.4.6

--
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/