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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 /arch
parent78f28b7c555359c67c2a0d23f7436e915329421e (diff)
downloadop-kernel-dev-e454cea20bdcff10ee698d11b8882662a0153a47.zip
op-kernel-dev-e454cea20bdcff10ee698d11b8882662a0153a47.tar.gz
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 'arch')
-rw-r--r--arch/x86/kernel/cpuid.c4
-rw-r--r--arch/x86/kernel/microcode_core.c2
-rw-r--r--arch/x86/kernel/msr.c4
3 files changed, 5 insertions, 5 deletions
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 @@ static struct notifier_block __refdata cpuid_class_cpu_notifier =
.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 @@ static int __init cpuid_init(void)
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)
diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c
index 9371448..0db7969 100644
--- a/arch/x86/kernel/microcode_core.c
+++ b/arch/x86/kernel/microcode_core.c
@@ -236,7 +236,7 @@ static const struct file_operations microcode_fops = {
static struct miscdevice microcode_dev = {
.minor = MICROCODE_MINOR,
.name = "microcode",
- .devnode = "cpu/microcode",
+ .nodename = "cpu/microcode",
.fops = &microcode_fops,
};
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 @@ static struct notifier_block __refdata msr_class_cpu_notifier = {
.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 @@ static int __init msr_init(void)
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)
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