1 files changed, 6 insertions, 0 deletions

diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index c7ddc87d6c87..4c60a50e66b2 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -344,6 +344,12 @@ irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node)
         if (!cnt)
                 return -EINVAL;
 
+        if (irq >= 0) {
+                if (from > irq)
+                        return -EINVAL;
+                from = irq;
+        }
+
         mutex_lock(&sparse_irq_lock);
 
         start = bitmap_find_next_zero_area(allocated_irqs, IRQ_BITMAP_BITS,