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>
diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c
index 7dd9500..6a3cefc 100644
--- a/arch/x86/kernel/msr.c
+++ b/arch/x86/kernel/msr.c
@@ -241,7 +241,7 @@
.notifier_call = msr_class_cpu_callback,
};
-static char *msr_nodename(struct device *dev)
+static char *msr_devnode(struct device *dev, mode_t *mode)
{
return kasprintf(GFP_KERNEL, "cpu/%u/msr", MINOR(dev->devt));
}
@@ -262,7 +262,7 @@
err = PTR_ERR(msr_class);
goto out_chrdev;
}
- msr_class->nodename = msr_nodename;
+ msr_class->devnode = msr_devnode;
for_each_online_cpu(i) {
err = msr_device_create(i);
if (err != 0)