kexec: fix compilation warning on xchg(&kexec_lock, 0) in kernel_kexec() · 4cd69b986e - Gogs

kexec: fix compilation warning on xchg(&kexec_lock, 0) in kernel_kexec()

kernel/kexec.c: In function 'kernel_kexec':
kernel/kexec.c:1506: warning: value computed is not used

Signed-off-by: Huang Ying <ying.huang@intel.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Huang Ying 16 years ago

parent

ce289e8972

commit

4cd69b986e

1 changed files with 2 additions and 1 deletions

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							+ 2
							
							- 1
						
kernel/kexec.c
							 
								View File
							
				@@ -1503,7 +1503,8 @@ int kernel_kexec(void)
			
				 	}
			
				  Unlock:
			
				-	xchg(&kexec_lock, 0);
			
				+	if (!xchg(&kexec_lock, 0))
			
				+		BUG();
			
				 	return error;
			
				 }