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| author | Dave Airlie <airlied@redhat.com> | 2013-02-08 12:10:18 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2013-02-08 12:10:18 +1000 |
| commit | 6dc1c49da6dd3bf020a66b2a135b9625ac01c2c7 (patch) | |
| tree | 38a6c5d4896de01449e9d224088ae223161fcd3c /arch/x86/kernel/msr.c | |
| parent | cd17ef4114ad5c514b17e6a0bb02a309ab90b692 (diff) | |
| parent | 5845b81bdad374f98f809a658ec747d92c9595c4 (diff) | |
| download | olio-linux-3.10-6dc1c49da6dd3bf020a66b2a135b9625ac01c2c7.tar.xz olio-linux-3.10-6dc1c49da6dd3bf020a66b2a135b9625ac01c2c7.zip | |
Merge branch 'fbcon-locking-fixes' of ssh://people.freedesktop.org/~airlied/linux into drm-next
This pulls in most of Linus tree up to -rc6, this fixes the worst lockdep
reported issues and re-enables fbcon lockdep.
(not the fbcon maintainer)
* 'fbcon-locking-fixes' of ssh://people.freedesktop.org/~airlied/linux: (529 commits)
Revert "Revert "console: implement lockdep support for console_lock""
fbcon: fix locking harder
fb: Yet another band-aid for fixing lockdep mess
fb: rework locking to fix lock ordering on takeover
Diffstat (limited to 'arch/x86/kernel/msr.c')
| -rw-r--r-- | arch/x86/kernel/msr.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c index a7c5661f849..4929502c137 100644 --- a/arch/x86/kernel/msr.c +++ b/arch/x86/kernel/msr.c @@ -174,6 +174,9 @@ static int msr_open(struct inode *inode, struct file *file) unsigned int cpu; struct cpuinfo_x86 *c; + if (!capable(CAP_SYS_RAWIO)) + return -EPERM; + cpu = iminor(file->f_path.dentry->d_inode); if (cpu >= nr_cpu_ids || !cpu_online(cpu)) return -ENXIO; /* No such CPU */ |