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authorKay Sievers <kay.sievers@vrfy.org>2009-09-18 23:01:12 +0200
committerLive-CD User <linux@linux.site>2009-09-19 12:50:38 -0700
commite454cea20bdcff10ee698d11b8882662a0153a47 (patch)
treef44581fe57787aef0a4f4dc00993a90ea8e688f6 /block
parent78f28b7c555359c67c2a0d23f7436e915329421e (diff)
Driver-Core: extend devnode callbacks to provide permissions
This allows subsytems to provide devtmpfs with non-default permissions for the device node. Instead of the default mode of 0600, null, zero, random, urandom, full, tty, ptmx now have a mode of 0666, which allows non-privileged processes to access standard device nodes in case no other userspace process applies the expected permissions. This also fixes a wrong assignment in pktcdvd and a checkpatch.pl complain. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'block')
-rw-r--r--block/bsg.c4
-rw-r--r--block/genhd.c8
2 files changed, 6 insertions, 6 deletions
diff --git a/block/bsg.c b/block/bsg.c
index 5f184bb3ff9..0676301f16d 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -1062,7 +1062,7 @@ EXPORT_SYMBOL_GPL(bsg_register_queue);
static struct cdev bsg_cdev;
-static char *bsg_nodename(struct device *dev)
+static char *bsg_devnode(struct device *dev, mode_t *mode)
{
return kasprintf(GFP_KERNEL, "bsg/%s", dev_name(dev));
}
@@ -1087,7 +1087,7 @@ static int __init bsg_init(void)
ret = PTR_ERR(bsg_class);
goto destroy_kmemcache;
}
- bsg_class->nodename = bsg_nodename;
+ bsg_class->devnode = bsg_devnode;
ret = alloc_chrdev_region(&devid, 0, BSG_MAX_DEVS, "bsg");
if (ret)
diff --git a/block/genhd.c b/block/genhd.c
index 2ad91ddad8e..517e4332cb3 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -998,12 +998,12 @@ struct class block_class = {
.name = "block",
};
-static char *block_nodename(struct device *dev)
+static char *block_devnode(struct device *dev, mode_t *mode)
{
struct gendisk *disk = dev_to_disk(dev);
- if (disk->nodename)
- return disk->nodename(disk);
+ if (disk->devnode)
+ return disk->devnode(disk, mode);
return NULL;
}
@@ -1011,7 +1011,7 @@ static struct device_type disk_type = {
.name = "disk",
.groups = disk_attr_groups,
.release = disk_release,
- .nodename = block_nodename,
+ .devnode = block_devnode,
};
#ifdef CONFIG_PROC_FS