Commit 45cdd473 authored by Roel Kluin's avatar Roel Kluin Committed by Hirokazu Takata

m32r: Should index be positive?

Index `ipi_num' is signed, test whether it is negative to
make sure we don't get a negative array element.
Signed-off-by: default avatarRoel Kluin <roel.kluin@gmail.com>
Signed-off-by: default avatarHirokazu Takata <takata@linux-m32r.org>
parent 337214e8
...@@ -806,7 +806,7 @@ unsigned long send_IPI_mask_phys(cpumask_t physid_mask, int ipi_num, ...@@ -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)) if (mask & ~physids_coerce(phys_cpu_present_map))
BUG(); BUG();
if (ipi_num >= NR_IPIS) if (ipi_num >= NR_IPIS || ipi_num < 0)
BUG(); BUG();
mask <<= IPI_SHIFT; mask <<= IPI_SHIFT;
......
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