[patch added to the 3.12 stable tree] SCSI: qla2xxx: fix error handling of qla2x00_mem_alloc()

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From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

This patch has been added to the 3.12 stable tree. If you have any
objections, please let us know.

===============

commit b2a72ec32d0f499aaadf41264232517a12326df0 upstream.

qla2x00_mem_alloc() returns 1 on success and -ENOMEM on failure.  On the
one hand the caller assumes non-zero is success but on the other hand
the caller also assumes that it returns an error code.

I've fixed it to return zero on success and a negative error code on
failure.  This matches the documentation as well.

[jejb: checkpatch fix]
Fixes: e315cd28b9ef ('[SCSI] qla2xxx: Code changes for qla data structure refactoring')
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Acked-by: Saurav Kashyap <saurav.kashyap@xxxxxxxxxx>
Signed-off-by: James Bottomley <JBottomley@xxxxxxxxxxxxx>
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
 drivers/scsi/qla2xxx/qla_os.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 9f01bbbf3a26..36d62fd53511 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -2616,7 +2616,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	    ha->flags.enable_64bit_addressing ? "enable" :
 	    "disable");
 	ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
-	if (!ret) {
+	if (ret) {
 		ql_log_pci(ql_log_fatal, pdev, 0x0031,
 		    "Failed to allocate memory for adapter, aborting.\n");
 
@@ -3541,10 +3541,10 @@ qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
 	else {
 		qla2x00_set_reserved_loop_ids(ha);
 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0123,
-		    "loop_id_map=%p. \n", ha->loop_id_map);
+		    "loop_id_map=%p.\n", ha->loop_id_map);
 	}
 
-	return 1;
+	return 0;
 
 fail_async_pd:
 	dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
-- 
1.9.2

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