IB/mlx5: Fix eq names to display nicely in /proc/interrupts

It's helpful for a driver to put the pci slot name in its interrupt
names, so /proc/interrupts will show the pci slot of the device.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index b267c65..b1a6cb3 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -164,6 +164,7 @@
 static int alloc_comp_eqs(struct mlx5_ib_dev *dev)
 {
 	struct mlx5_eq_table *table = &dev->mdev.priv.eq_table;
+	char name[MLX5_MAX_EQ_NAME];
 	struct mlx5_eq *eq, *n;
 	int ncomp_vec;
 	int nent;
@@ -180,11 +181,10 @@
 			goto clean;
 		}
 
-		snprintf(eq->name, MLX5_MAX_EQ_NAME, "mlx5_comp%d", i);
+		snprintf(name, MLX5_MAX_EQ_NAME, "mlx5_comp%d", i);
 		err = mlx5_create_map_eq(&dev->mdev, eq,
 					 i + MLX5_EQ_VEC_COMP_BASE, nent, 0,
-					 eq->name,
-					 &dev->mdev.priv.uuari.uars[0]);
+					 name, &dev->mdev.priv.uuari.uars[0]);
 		if (err) {
 			kfree(eq);
 			goto clean;