[PATCH for-rc 2/2] ice, irdma: fix an off by one in error handling code

[Tatyana Nikolova <tatyana.e.nikolova@intel.com>]

From: Dan Carpenter <dan.carpenter@linaro.org>

If we don't allocate the MIN number of IRQs then we need to free what
we have and return -ENOMEM.  The problem is this loop is off by one
so it frees an entry that wasn't allocated and it doesn't free the
first entry where i == 0.

Fixes: 3e0d3cb3fbe0 ("ice, irdma: move interrupts code to irdma")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
---
 drivers/infiniband/hw/irdma/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/irdma/main.c b/drivers/infiniband/hw/irdma/main.c
index d10fd16dcec3..7599e31b5743 100644
--- a/drivers/infiniband/hw/irdma/main.c
+++ b/drivers/infiniband/hw/irdma/main.c
@@ -221,7 +221,7 @@ static int irdma_init_interrupts(struct irdma_pci_f *rf, struct ice_pf *pf)
 			break;
 
 	if (i < IRDMA_MIN_MSIX) {
-		for (; i > 0; i--)
+		while (--i >= 0)
 			ice_free_rdma_qvector(pf, &rf->msix_entries[i]);
 
 		kfree(rf->msix_entries);
-- 
2.31.1