Main canon (TV / Films).
There appear to be no short- or long-term consequences for Sisko.
Short term. The very next episode we see Sisko in his office quite unconcernedly getting on with paperwork. No mention is made of any censure or a trip to Earth to explain his actions.
Long Term. Over the following year Sisko receives two substantial promotions; acting as the Federation's military liaison with the Klingons and coordinating Federation war efforts against the Dominion in his Sector. It's pretty clear that his career trajectory hasn't been harmed.
There's an extremely brief mention of Solosos III in the EU novel 'The Genesis Wave, Book III'. It would appear the Sisko's actions, while considered somewhat inelegant, were nonetheless regarded as legitimate and proportionate.
Nechayev nodded sagely. “Regimol just sent word that he’s wracked his
brain, and he thinks that could be it. As you must know, there was a
Maquis colony there, led by a Starfleet officer named Michael
Eddington. A Starfleet effort to capture him made the planet
unlivable. It wasn’t perhaps the best way to handle the situation, but
Teska nodded. “Yes, firing quantum torpedoes with trilithium resin
into the atmosphere was effective in making the planet unlivable.”
“I meant that Eddington surrendered,” said the admiral with a scowl.
“Regimol says that both the Bajorans and the Maquis revere Solosos III
as the site of the Maquis’s most noble defeat, because we had to
destroy the planet to save it. When you root for the underdog, that’s
the kind of battle you appreciate, I guess. I wasn’t involved, but
it was a turning point. Eddington was a charismatic leader.”