Variable ret is reset in the loop, and its value will be 0 during the after repeat of the loop. Then, if pci_alloc_consistent() returns NULL, the return value is 0. 0 means no error, which may make it impossible for the callers of beiscsi_create_eqs() to detect the memory allocation error. This patch fixes the bug, assigning "-ENOMEM" to ret on the path that the call to pci_alloc_consistent() fails.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188951 Signed-off-by: Pan Bian <bianpan2...@163.com> --- drivers/scsi/be2iscsi/be_main.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c index b6c5791..b5112d6 100644 --- a/drivers/scsi/be2iscsi/be_main.c +++ b/drivers/scsi/be2iscsi/be_main.c @@ -3049,8 +3049,10 @@ static int beiscsi_create_eqs(struct beiscsi_hba *phba, eq_vaddress = pci_alloc_consistent(phba->pcidev, num_eq_pages * PAGE_SIZE, &paddr); - if (!eq_vaddress) + if (!eq_vaddress) { + ret = -ENOMEM; goto create_eq_error; + } mem->va = eq_vaddress; ret = be_fill_queue(eq, phba->params.num_eq_entries, -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
