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Commit a7e84f2b authored by Vasu Dev's avatar Vasu Dev Committed by James Bottomley
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[SCSI] libfc: fixed a soft lockup issue in fc_exch_recv_abts 



The fc_seq_start_next grabs ep->ex_lock but this lock was already held here,
so instead called fc_seq_start_next_locked to avoid soft lockup.

Signed-off-by: default avatarVasu Dev <vasu.dev@intel.com>
Signed-off-by: default avatarRobert Love <robert.w.love@intel.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@HansenPartnership.com>
parent 78342da3

drivers/scsi/libfc/fc_exch.c

+1 −1
Original line number Diff line number Diff line
@@ -1096,7 +1096,7 @@ static void fc_exch_recv_abts(struct fc_exch *ep, struct fc_frame *rx_fp) 
		ap->ba_high_seq_cnt = fh->fh_seq_cnt;

		ap->ba_low_seq_cnt = htons(sp->cnt);

	}

	sp = fc_seq_start_next(sp);

	sp = fc_seq_start_next_locked(sp);

	spin_unlock_bh(&ep->ex_lock);

	fc_seq_send_last(sp, fp, FC_RCTL_BA_ACC, FC_TYPE_BLS);

	fc_frame_free(rx_fp);