[tip:x86/cpu] x86, cpuid: Remove the bkl from cpuid_open()

[tip-bot for John Kacur]

Commit-ID:  170a0bc3808909d8ea0f3f9c725c6565efe7f9c4
Gitweb:     http://git.kernel.org/tip/170a0bc3808909d8ea0f3f9c725c6565efe7f9c4
Author:     John Kacur <jkacur@xxxxxxxxxx>
AuthorDate: Wed, 7 Oct 2009 20:19:32 +0200
Committer:  H. Peter Anvin <hpa@xxxxxxxxx>
CommitDate: Wed, 7 Oct 2009 15:41:21 -0700

x86, cpuid: Remove the bkl from cpuid_open()

Most of the variables are local to the function. It IS possible that
for struct cpuinfo_x86 *c c could point to the same area. However,
this is used read only.

Signed-off-by: John Kacur <jkacur@xxxxxxxxxx>
LKML-Reference: <alpine.LFD.2.00.0910072016190.15183@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxx>
---
 arch/x86/kernel/cpuid.c |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c
index b07af88..ef69284 100644
--- a/arch/x86/kernel/cpuid.c
+++ b/arch/x86/kernel/cpuid.c
@@ -118,8 +118,6 @@ static int cpuid_open(struct inode *inode, struct file *file)
 	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 */
@@ -129,7 +127,6 @@ static int cpuid_open(struct inode *inode, struct file *file)
 	if (c->cpuid_level < 0)
 		ret = -EIO;	/* CPUID not supported */
 out:
-	unlock_kernel();
 	return ret;
 }
 
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/