net/mlx5: IRQ, Fix null string in debug print

irq_pool_alloc() debug print can print a null string.
Fix it by providing a default string to print.

Fixes: 71e084e ("net/mlx5: Allocating a pool of MSI-X vectors for SFs")
Signed-off-by: Shay Drory <[email protected]>
Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Reviewed-by: Moshe Shemesh <[email protected]>
Signed-off-by: Tariq Toukan <[email protected]>
Reviewed-by: Kalesh AP <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: shayshyi

drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c

@@ -572,7 +572,7 @@ irq_pool_alloc(struct mlx5_core_dev *dev, int start, int size, char *name,
 	pool->min_threshold = min_threshold * MLX5_EQ_REFS_PER_IRQ;
 	pool->max_threshold = max_threshold * MLX5_EQ_REFS_PER_IRQ;
 	mlx5_core_dbg(dev, "pool->name = %s, pool->size = %d, pool->start = %d",
-		      name, size, start);
+		      name ? name : "mlx5_pcif_pool", size, start);
 	return pool;
 }