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scsi: be2iscsi: set errno on error path

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Variable ret is reset in the loop, and its value will be 0 during the
second and after repeat of the loop. If pci_alloc_consistent() returns a
NULL pointer then, it will leaves with return value 0. 0 means no error,
which is contrary to the fact. This patches fixes the bug, explicitly
assigning "-ENOMEM" to return variable ret on the path that the call to
pci_alloc_consistent() fails.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188941

Signed-off-by: Pan Bian <bianpan2016@163.com>
Reviewed-by: Jitendra Bhivare <Jitendra.bhivare@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Pan Bian 2016-12-04 13:21:42 +08:00 committed by Martin K. Petersen
parent 2a80d5458a
commit 29b3325275
1 changed files with 3 additions and 1 deletions
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4
drivers/scsi/be2iscsi/be_main.c
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@ -3113,8 +3113,10 @@ static int beiscsi_create_cqs(struct beiscsi_hba *phba,
cq_vaddress = pci_alloc_consistent(phba->pcidev,
num_cq_pages * PAGE_SIZE,
&paddr);
if (!cq_vaddress)
if (!cq_vaddress) {
ret = -ENOMEM;
goto create_cq_error;
}
ret = be_fill_queue(cq, phba->params.num_cq_entries,
sizeof(struct sol_cqe), cq_vaddress);