All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
To: Artem Bityutskiy <dedekind1@gmail.com>,
	Richard Weinberger <richard@nod.at>,
	David Woodhouse <dwmw2@infradead.org>,
	Brian Norris <computersforpeace@gmail.com>,
	Boris Brezillon <bbrezillon@kernel.org>,
	Marek Vasut <marek.vasut@gmail.com>
Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org,
	"Gustavo A. R. Silva" <gustavo@embeddedor.com>
Subject: [PATCH] mtd: ubi: wl: Fix uninitialized variable
Date: Sat, 2 Mar 2019 13:59:07 -0600	[thread overview]
Message-ID: <20190302195907.GA16022@embeddedor.com> (raw)

There is a potential execution path in which variable *err*
is compared against UBI_IO_BITFLIPS without being properly
initialized previously.

Fix this by initializing variable *err* to 0.

Addresses-Coverity-ID: 1477298 "(Uninitialized scalar variable")
Fixes: 663586c0a892 ("ubi: Expose the bitrot interface")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
 drivers/mtd/ubi/wl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index 40f838d54b0f..cf07d869724f 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -1475,7 +1475,7 @@ static bool scrub_possible(struct ubi_device *ubi, struct ubi_wl_entry *e)
  */
 int ubi_bitflip_check(struct ubi_device *ubi, int pnum, int force)
 {
-	int err;
+	int err = 0;
 	struct ubi_wl_entry *e;
 
 	if (pnum < 0 || pnum >= ubi->peb_count) {
-- 
2.21.0


______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/

WARNING: multiple messages have this Message-ID (diff)
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
To: Artem Bityutskiy <dedekind1@gmail.com>,
	Richard Weinberger <richard@nod.at>,
	David Woodhouse <dwmw2@infradead.org>,
	Brian Norris <computersforpeace@gmail.com>,
	Boris Brezillon <bbrezillon@kernel.org>,
	Marek Vasut <marek.vasut@gmail.com>
Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org,
	"Gustavo A. R. Silva" <gustavo@embeddedor.com>
Subject: [PATCH] mtd: ubi: wl: Fix uninitialized variable
Date: Sat, 2 Mar 2019 13:59:07 -0600	[thread overview]
Message-ID: <20190302195907.GA16022@embeddedor.com> (raw)

There is a potential execution path in which variable *err*
is compared against UBI_IO_BITFLIPS without being properly
initialized previously.

Fix this by initializing variable *err* to 0.

Addresses-Coverity-ID: 1477298 "(Uninitialized scalar variable")
Fixes: 663586c0a892 ("ubi: Expose the bitrot interface")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
 drivers/mtd/ubi/wl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index 40f838d54b0f..cf07d869724f 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -1475,7 +1475,7 @@ static bool scrub_possible(struct ubi_device *ubi, struct ubi_wl_entry *e)
  */
 int ubi_bitflip_check(struct ubi_device *ubi, int pnum, int force)
 {
-	int err;
+	int err = 0;
 	struct ubi_wl_entry *e;
 
 	if (pnum < 0 || pnum >= ubi->peb_count) {
-- 
2.21.0


             reply	other threads:[~2019-03-02 19:59 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-02 19:59 Gustavo A. R. Silva [this message]
2019-03-02 19:59 ` [PATCH] mtd: ubi: wl: Fix uninitialized variable Gustavo A. R. Silva

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20190302195907.GA16022@embeddedor.com \
    --to=gustavo@embeddedor.com \
    --cc=bbrezillon@kernel.org \
    --cc=computersforpeace@gmail.com \
    --cc=dedekind1@gmail.com \
    --cc=dwmw2@infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mtd@lists.infradead.org \
    --cc=marek.vasut@gmail.com \
    --cc=richard@nod.at \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.