lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

Browse Source 
* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, msr, cpumask: Use struct cpumask rather than the deprecated cpumask_t
  x86, cpuid: Simplify the code in cpuid_open
  x86, cpuid: Remove the bkl from cpuid_open()
  x86, msr: Remove the bkl from msr_open()
  x86: AMD Geode LX optimizations
  x86, msr: Unify rdmsr_on_cpus/wrmsr_on_cpus
This commit is contained in:
Linus Torvalds
2009-12-05 15:32:35 -08:00
parent c2ed69cdc9 0d0fbbddcc
commit 83be7d764d
6 changed files with 37 additions and 54 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
arch/x86/kernel/cpuid.c
View File

@@ -116,21 +116,16 @@ static int cpuid_open(struct inode *inode, struct file *file)
{
unsigned int cpu;
struct cpuinfo_x86 *c;
int ret = 0;
lock_kernel();
cpu = iminor(file->f_path.dentry->d_inode);
if (cpu >= nr_cpu_ids || !cpu_online(cpu)) {
ret = -ENXIO; /* No such CPU */
goto out;
}
if (cpu >= nr_cpu_ids || !cpu_online(cpu))
return -ENXIO; /* No such CPU */
c = &cpu_data(cpu);
if (c->cpuid_level < 0)
ret = -EIO; /* CPUID not supported */
out:
unlock_kernel();
return ret;
return -EIO; /* CPUID not supported */
return 0;
}
/*