linux-kernel - [PATCH 16/25] block: fix error return code

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: <1388357260-4843-17-git-send-email-Julia.Lawall@lip6.fr>
Date:	Sun, 29 Dec 2013 23:47:31 +0100
From:	Julia Lawall <Julia.Lawall@...6.fr>
To:	linux-kernel@...r.kernel.org
Cc:	kernel-janitors@...r.kernel.org
Subject: [PATCH 16/25] block: fix error return code

From: Julia Lawall <Julia.Lawall@...6.fr>

Set the return variable to an error code as done elsewhere in the function.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
(
if@p1 (\(ret < 0\|ret != 0\))
 { ... return ret; }
|
ret@p1 = 0
)
... when != ret = e1
    when != &ret
*if(...)
{
  ... when != ret = e2
      when forall
 return ret;
}

// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>

---
Not tested.

 drivers/cdrom/gdrom.c |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c
index 51e75ad..93d29b1 100644
--- a/drivers/cdrom/gdrom.c
+++ b/drivers/cdrom/gdrom.c
@@ -807,16 +807,20 @@ static int probe_gdrom(struct platform_device *devptr)
 	if (err)
 		goto probe_fail_cmdirq_register;
 	gd.gdrom_rq = blk_init_queue(gdrom_request, &gdrom_lock);
-	if (!gd.gdrom_rq)
+	if (!gd.gdrom_rq) {
+		err = -ENOMEM;
 		goto probe_fail_requestq;
+	}
 
 	err = probe_gdrom_setupqueue();
 	if (err)
 		goto probe_fail_toc;
 
 	gd.toc = kzalloc(sizeof(struct gdromtoc), GFP_KERNEL);
-	if (!gd.toc)
+	if (!gd.toc) {
+		err = -ENOMEM;
 		goto probe_fail_toc;
+	}
 	add_disk(gd.disk);
 	return 0;
 

--
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/