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scsi: lpfc: Fix resource leak in lpfc_sli4_send_seq_to_ulp()
If no handler is found in lpfc_complete_unsol_iocb() to match the rctl of a received frame, the frame is dropped and resources are leaked. Fix by returning resources when discarding an unhandled frame type. Update lpfc_fc_frame_check() handling of NOP basic link service. Link: https://lore.kernel.org/r/20220426181419.9154-1-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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3d1d34ec1f
commit
646db1a560
1 changed files with 4 additions and 2 deletions
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@ -18122,7 +18122,6 @@ lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
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case FC_RCTL_ELS_REP: /* extended link services reply */
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case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
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case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
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case FC_RCTL_BA_NOP: /* basic link service NOP */
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case FC_RCTL_BA_ABTS: /* basic link service abort */
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case FC_RCTL_BA_RMC: /* remove connection */
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case FC_RCTL_BA_ACC: /* basic accept */
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@ -18143,6 +18142,7 @@ lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
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fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
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fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
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return lpfc_fc_frame_check(phba, fc_hdr);
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case FC_RCTL_BA_NOP: /* basic link service NOP */
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default:
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goto drop;
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}
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@ -18954,12 +18954,14 @@ lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
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if (!lpfc_complete_unsol_iocb(phba,
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phba->sli4_hba.els_wq->pring,
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iocbq, fc_hdr->fh_r_ctl,
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fc_hdr->fh_type))
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fc_hdr->fh_type)) {
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lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
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"2540 Ring %d handler: unexpected Rctl "
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"x%x Type x%x received\n",
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LPFC_ELS_RING,
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fc_hdr->fh_r_ctl, fc_hdr->fh_type);
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lpfc_in_buf_free(phba, &seq_dmabuf->dbuf);
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}
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/* Free iocb created in lpfc_prep_seq */
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list_for_each_entry_safe(curr_iocb, next_iocb,
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