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authorEmil Goode <emilgoode@gmail.com>2012-04-01 20:48:04 +0200
committerThomas Gleixner <tglx@linutronix.de>2012-04-06 11:49:59 +0200
commit46ed99d1b7c92920ce9e313152522847647aae4f (patch)
treeab5d5d2d6a12e7105535462e8d666ecc56a7182a /arch/x86
parentdba69d1092e291e257fb5673a3ad0e4c87878ebc (diff)
downloadblackbird-op-linux-46ed99d1b7c92920ce9e313152522847647aae4f.tar.gz
blackbird-op-linux-46ed99d1b7c92920ce9e313152522847647aae4f.zip
x86: vsyscall: Use NULL instead 0 for a pointer argument
This patch silences the following sparse warning: arch/x86/kernel/vsyscall_64.c:250:34: warning: Using plain integer as NULL pointer Signed-off-by: Emil Goode <emilgoode@gmail.com> Acked-by: Andy Lutomirski <luto@amacapital.net> Cc: john.stultz@linaro.org Link: http://lkml.kernel.org/r/1333306084-3776-1-git-send-email-emilgoode@gmail.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/kernel/vsyscall_64.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
index f386dc49f988..7515cf0e1805 100644
--- a/arch/x86/kernel/vsyscall_64.c
+++ b/arch/x86/kernel/vsyscall_64.c
@@ -216,9 +216,9 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
current_thread_info()->sig_on_uaccess_error = 1;
/*
- * 0 is a valid user pointer (in the access_ok sense) on 32-bit and
+ * NULL is a valid user pointer (in the access_ok sense) on 32-bit and
* 64-bit, so we don't need to special-case it here. For all the
- * vsyscalls, 0 means "don't write anything" not "write it at
+ * vsyscalls, NULL means "don't write anything" not "write it at
* address 0".
*/
ret = -EFAULT;
@@ -247,7 +247,7 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
ret = sys_getcpu((unsigned __user *)regs->di,
(unsigned __user *)regs->si,
- 0);
+ NULL);
break;
}
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