linux-kernel - [PATCH] kernel/posix-cpu-timers.c: fix sparse warning

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Date:	Wed, 29 Apr 2009 19:14:32 -0400
From:	"H Hartley Sweeten" <hartleys@...ionengravers.com>
To:	<linux-kernel@...r.kernel.org>
Cc:	<subrata@...ux.vnet.ibm.com>
Subject: [PATCH] kernel/posix-cpu-timers.c: fix sparse warning

Sparse reports the following in kernel/posix-cpu-timers.c:

  warning: symbol 'firing' shadows an earlier one

Signed-off-by: H Hartley Sweeten <hsweeten@...ionengravers.com>
Cc: Subrata Modak <subrata@...ux.vnet.ibm.com>

---

diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
index c9dcf98..88f24ab 100644
--- a/kernel/posix-cpu-timers.c
+++ b/kernel/posix-cpu-timers.c
@@ -1420,17 +1420,17 @@ void run_posix_cpu_timers(struct task_struct *tsk)
 	 * timer call will interfere.
 	 */
 	list_for_each_entry_safe(timer, next, &firing, it.cpu.entry) {
-		int firing;
+		int cpu_firing;
 		spin_lock(&timer->it_lock);
 		list_del_init(&timer->it.cpu.entry);
-		firing = timer->it.cpu.firing;
+		cpu_firing = timer->it.cpu.firing;
 		timer->it.cpu.firing = 0;
 		/*
 		 * The firing flag is -1 if we collided with a reset
 		 * of the timer, which already reported this
 		 * almost-firing as an overrun.  So don't generate an event.
 		 */
-		if (likely(firing >= 0)) {
+		if (likely(cpu_firing >= 0)) {
 			cpu_timer_fire(timer);
 		}
 		spin_unlock(&timer->it_lock); 
--
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