[tip:irq/urgent] genirq/matrix: Make - vs ?: Precedence explicit

[tip-bot for Kees Cook]

Commit-ID:  75f1133873d6a1276d3c19918b7c94975840f990
Gitweb:     https://git.kernel.org/tip/75f1133873d6a1276d3c19918b7c94975840f990
Author:     Kees Cook <keescook@xxxxxxxxxxxx>
AuthorDate: Wed, 22 Nov 2017 12:56:45 -0800
Committer:  Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Thu, 23 Nov 2017 20:09:31 +0100

genirq/matrix: Make - vs ?: Precedence explicit

Noticed with a Clang build. This improves the readability of the ?:
expression, as it has lower precedence than the - expression. Show
explicitly that - is evaluated first.

Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: 20171122205645.GA27125@beast">https://lkml.kernel.org/r/20171122205645.GA27125@beast
---
 kernel/irq/matrix.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/irq/matrix.c b/kernel/irq/matrix.c
index a3cbbc8..7df2480 100644
--- a/kernel/irq/matrix.c
+++ b/kernel/irq/matrix.c
@@ -384,7 +384,7 @@ unsigned int irq_matrix_available(struct irq_matrix *m, bool cpudown)
 {
 	struct cpumap *cm = this_cpu_ptr(m->maps);
 
-	return m->global_available - cpudown ? cm->available : 0;
+	return (m->global_available - cpudown) ? cm->available : 0;
 }
 
 /**