linux-kernel - [PATCH] Random number driver: make random_ioctl as an unlocked

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]

Date:	Fri, 11 Jan 2008 17:09:52 +0530
From:	Nikanth Karthikesan <knikanth@...e.de>
To:	mpm@...enic.com, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [PATCH] Random number driver: make random_ioctl as an
	unlocked_ioctl function

The random_ioctl is registered as an ioctl function but it does not
require BKL to be held when called. Changing it as an unlocked_ioctl
function.

Signed-off-by: Nikanth Karthikesan <knikanth@...e.de>

---
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 5fee056..2446e14 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1065,9 +1065,8 @@ random_write(struct file * file, const char __user * buffer,
 	return (ssize_t)count;
 }
 
-static int
-random_ioctl(struct inode * inode, struct file * file,
-	     unsigned int cmd, unsigned long arg)
+static long
+random_ioctl(struct file * file, unsigned int cmd, unsigned long arg)
 {
 	int size, ent_count;
 	int __user *p = (int __user *)arg;
@@ -1131,13 +1130,13 @@ const struct file_operations random_fops = {
 	.read  = random_read,
 	.write = random_write,
 	.poll  = random_poll,
-	.ioctl = random_ioctl,
+	.unlocked_ioctl = random_ioctl,
 };
 
 const struct file_operations urandom_fops = {
 	.read  = urandom_read,
 	.write = random_write,
-	.ioctl = random_ioctl,
+	.unlocked_ioctl = random_ioctl,
 };
 
 /***************************************************************


--
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/