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: <1420731061-5029-1-git-send-email-colin.king@canonical.com>
Date:	Thu,  8 Jan 2015 15:31:01 +0000
From:	Colin King <colin.king@...onical.com>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
	linux-pm@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] PM / clock_ops: initialize ret to avoid garbage being returned

From: Colin Ian King <colin.king@...onical.com>

cppcheck detected an unitialised ret:
  [drivers/base/power/clock_ops.c:53]: (error) Uninitialized variable: ret

ret is only assigned if ce->status < PCE_STATUS_ERROR, if this is false
then __pm_clk_enable returns whatever garbage ret picks up from the stack.

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/base/power/clock_ops.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/base/power/clock_ops.c b/drivers/base/power/clock_ops.c
index d626576..5bd283d 100644
--- a/drivers/base/power/clock_ops.c
+++ b/drivers/base/power/clock_ops.c
@@ -39,7 +39,7 @@ struct pm_clock_entry {
  */
 static inline int __pm_clk_enable(struct device *dev, struct pm_clock_entry *ce)
 {
-	int ret;
+	int ret = 0;
 
 	if (ce->status < PCE_STATUS_ERROR) {
 		ret = clk_enable(ce->clk);
-- 
1.7.9.5

--
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/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ