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scsi: be2iscsi: Fix a theoretical leak in beiscsi_create_eqs()

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[ Upstream commit 38b2db564d ]

The be_fill_queue() function can only fail when "eq_vaddress" is NULL and
since it's non-NULL here that means the function call can't fail.  But
imagine if it could, then in that situation we would want to store the
"paddr" so that dma memory can be released.

Link: https://lore.kernel.org/r/20200928091300.GD377727@mwanda
Fixes: bfead3b2cb ("[SCSI] be2iscsi: Adding msix and mcc_rings V3")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dan Carpenter 2020-09-28 12:13:00 +03:00 committed by Greg Kroah-Hartman
parent 4abb2c64ae
commit 4c0ab952c4
1 changed files with 2 additions and 2 deletions
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4
drivers/scsi/be2iscsi/be_main.c
View file

@ -3013,6 +3013,7 @@ static int beiscsi_create_eqs(struct beiscsi_hba *phba,
goto create_eq_error;
}
mem->dma = paddr;
mem->va = eq_vaddress;
ret = be_fill_queue(eq, phba->params.num_eq_entries,
sizeof(struct be_eq_entry), eq_vaddress);
@ -3022,7 +3023,6 @@ static int beiscsi_create_eqs(struct beiscsi_hba *phba,
goto create_eq_error;
}
mem->dma = paddr;
ret = beiscsi_cmd_eq_create(&phba->ctrl, eq,
phwi_context->cur_eqd);
if (ret) {
@ -3079,6 +3079,7 @@ static int beiscsi_create_cqs(struct beiscsi_hba *phba,
goto create_cq_error;
}
mem->dma = paddr;
ret = be_fill_queue(cq, phba->params.num_cq_entries,
sizeof(struct sol_cqe), cq_vaddress);
if (ret) {
@ -3088,7 +3089,6 @@ static int beiscsi_create_cqs(struct beiscsi_hba *phba,
goto create_cq_error;
}
mem->dma = paddr;
ret = beiscsi_cmd_cq_create(&phba->ctrl, cq, eq, false,
false, 0);
if (ret) {