From: Jitendra Bhivare Date: Wed, 20 Jan 2016 08:40:48 +0000 (+0530) Subject: be2iscsi: Fix to synchronize tag allocation using spin_lock X-Git-Tag: next-20160210~14^2~2^2~14 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=45857258ebb3bf026a1b0bdec95d7679cff0cda1;p=karo-tx-linux.git be2iscsi: Fix to synchronize tag allocation using spin_lock alloc_mcc_tag needs to be done under mcc_lock. Signed-off-by: Jitendra Bhivare Reviewed-by: Hannes Reinicke Signed-off-by: Martin K. Petersen --- diff --git a/drivers/scsi/be2iscsi/be_cmds.c b/drivers/scsi/be2iscsi/be_cmds.c index 1913e9e34271..db0314985e72 100644 --- a/drivers/scsi/be2iscsi/be_cmds.c +++ b/drivers/scsi/be2iscsi/be_cmds.c @@ -121,6 +121,7 @@ unsigned int alloc_mcc_tag(struct beiscsi_hba *phba) { unsigned int tag = 0; + spin_lock(&phba->ctrl.mcc_lock); if (phba->ctrl.mcc_tag_available) { tag = phba->ctrl.mcc_tag[phba->ctrl.mcc_alloc_index]; phba->ctrl.mcc_tag[phba->ctrl.mcc_alloc_index] = 0; @@ -134,6 +135,7 @@ unsigned int alloc_mcc_tag(struct beiscsi_hba *phba) else phba->ctrl.mcc_alloc_index++; } + spin_unlock(&phba->ctrl.mcc_lock); return tag; } @@ -254,7 +256,7 @@ int beiscsi_mccq_compl(struct beiscsi_hba *phba, void free_mcc_tag(struct be_ctrl_info *ctrl, unsigned int tag) { - spin_lock(&ctrl->mbox_lock); + spin_lock(&ctrl->mcc_lock); tag = tag & 0x000000FF; ctrl->mcc_tag[ctrl->mcc_free_index] = tag; if (ctrl->mcc_free_index == (MAX_MCC_CMD - 1)) @@ -262,7 +264,7 @@ void free_mcc_tag(struct be_ctrl_info *ctrl, unsigned int tag) else ctrl->mcc_free_index++; ctrl->mcc_tag_available++; - spin_unlock(&ctrl->mbox_lock); + spin_unlock(&ctrl->mcc_lock); } bool is_link_state_evt(u32 trailer)