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m32r: Should index be positive?
author
Roel Kluin
<roel.kluin@gmail.com>
Sun, 1 Nov 2009 14:33:06 +0000
(15:33 +0100)
committer
Hirokazu Takata
<takata@linux-m32r.org>
Tue, 3 Nov 2009 23:39:26 +0000
(08:39 +0900)
Index `ipi_num' is signed, test whether it is negative to
make sure we don't get a negative array element.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
arch/m32r/kernel/smp.c
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diff --git
a/arch/m32r/kernel/smp.c
b/arch/m32r/kernel/smp.c
index
8a88f1f
..
31cef20
100644
(file)
--- a/
arch/m32r/kernel/smp.c
+++ b/
arch/m32r/kernel/smp.c
@@
-806,7
+806,7
@@
unsigned long send_IPI_mask_phys(cpumask_t physid_mask, int ipi_num,
if (mask & ~physids_coerce(phys_cpu_present_map))
BUG();
- if (ipi_num >= NR_IPIS)
+ if (ipi_num >= NR_IPIS
|| ipi_num < 0
)
BUG();
mask <<= IPI_SHIFT;