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authorDan Carpenter <dan.carpenter@oracle.com>2020-09-28 12:13:00 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2020-10-03 04:32:36 +0300
commit38b2db564d9ab7797192ef15d7aade30633ceeae (patch)
tree6b0322120d3d6eb0b73d9e9d665433126a020b61
parent66ab2fa3721690d4fc912a4845f46faf0a8e2011 (diff)
downloadlinux-38b2db564d9ab7797192ef15d7aade30633ceeae.tar.xz
scsi: be2iscsi: Fix a theoretical leak in beiscsi_create_eqs()
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: bfead3b2cb46 ("[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>
-rw-r--r--drivers/scsi/be2iscsi/be_main.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 8dc2e0824ad7..0e45f2c14559 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -3020,6 +3020,7 @@ 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);
@@ -3029,7 +3030,6 @@ static int beiscsi_create_eqs(struct beiscsi_hba *phba,
goto create_eq_error;
}
- mem->dma = paddr;
ret = beiscsi_cmd_eq_create(&phba->ctrl, eq,
BEISCSI_EQ_DELAY_DEF);
if (ret) {
@@ -3086,6 +3086,7 @@ 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) {
@@ -3095,7 +3096,6 @@ 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) {