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/cpuid.c b/arch/x86/kernel/cpuid.c
index b07af88..6a52d4b 100644
--- a/arch/x86/kernel/cpuid.c
+++ b/arch/x86/kernel/cpuid.c
@@ -182,7 +182,7 @@
.notifier_call = cpuid_class_cpu_callback,
};
-static char *cpuid_nodename(struct device *dev)
+static char *cpuid_devnode(struct device *dev, mode_t *mode)
{
return kasprintf(GFP_KERNEL, "cpu/%u/cpuid", MINOR(dev->devt));
}
@@ -203,7 +203,7 @@
err = PTR_ERR(cpuid_class);
goto out_chrdev;
}
- cpuid_class->nodename = cpuid_nodename;
+ cpuid_class->devnode = cpuid_devnode;
for_each_online_cpu(i) {
err = cpuid_device_create(i);
if (err != 0)