ehca: ret is unsigned, ibmebus_request_irq() negative return ignored in hca_create_eq()

drivers/infiniband/hw/ehca/ehca_eq.c +5 -4

index b4ac617..9727235 100644
@@ -59,6 +59,7 @@ int ehca_create_eq(struct ehca_shca *shca,
    u32 i;
    void *vpage;
    struct ib_device *ib_dev = &shca->ib_device;
+   int ret2;
 
    spin_lock_init(&eq->spinlock);
    spin_lock_init(&eq->irq_spinlock);

@@ -123,18 +124,18 @@ int ehca_create_eq(struct ehca_shca *shca,
 
    /* register interrupt handlers and initialize work queues */
    if (type == EHCA_EQ) {
-      ret = ibmebus_request_irq(eq->ist, ehca_interrupt_eq,
+      ret2 = ibmebus_request_irq(eq->ist, ehca_interrupt_eq,
                  IRQF_DISABLED, "ehca_eq",
                  (void *)shca);
-      if (ret < 0)
+      if (ret2 < 0)
          ehca_err(ib_dev, "Can't map interrupt handler.");
 
       tasklet_init(&eq->interrupt_task, ehca_tasklet_eq, (long)shca);
    } else if (type == EHCA_NEQ) {
-      ret = ibmebus_request_irq(eq->ist, ehca_interrupt_neq,
+      ret2 = ibmebus_request_irq(eq->ist, ehca_interrupt_neq,
                  IRQF_DISABLED, "ehca_neq",
                  (void *)shca);
-      if (ret < 0)
+      if (ret2 < 0)
          ehca_err(ib_dev, "Can't map interrupt handler.");
 
       tasklet_init(&eq->interrupt_task, ehca_tasklet_neq, (long)shca);