[PATCH 2/2] scsi: qedf: fix error codes in qedf_alloc_global_queues()

[Dan Carpenter <dan.carpenter@oracle.com>]

This driver has some left over "return 1" on failure style code mixed
with "return negative error codes" style code.  The caller doesn't care
so we should just convert everything to return negative error codes.

Then there was a problem that there were two variables used to store
error codes which just resulted in confusion.  If qedf_alloc_bdq()
returned a negative error code, we accidentally returned success instead
of propagating the error code.  So get rid of the "rc" variable and use
"status" every where.

Also remove the "status = 0" initialization so that these sorts of bugs
will be detected by the compiler in the future.

Fixes: 61d8658b4a43 ("scsi: qedf: Add QLogic FastLinQ offload FCoE driver framework.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 drivers/scsi/qedf/qedf_main.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c
index 85f41abcb56c..42d0d941dba5 100644
--- a/drivers/scsi/qedf/qedf_main.c
+++ b/drivers/scsi/qedf/qedf_main.c
@@ -3004,7 +3004,7 @@ static int qedf_alloc_global_queues(struct qedf_ctx *qedf)
 {
 	u32 *list;
 	int i;
-	int status = 0, rc;
+	int status;
 	u32 *pbl;
 	dma_addr_t page;
 	int num_pages;
@@ -3016,7 +3016,7 @@ static int qedf_alloc_global_queues(struct qedf_ctx *qedf)
 	 */
 	if (!qedf->num_queues) {
 		QEDF_ERR(&(qedf->dbg_ctx), "No MSI-X vectors available!\n");
-		return 1;
+		return -ENOMEM;
 	}
 
 	/*
@@ -3024,7 +3024,7 @@ static int qedf_alloc_global_queues(struct qedf_ctx *qedf)
 	 * addresses of our queues
 	 */
 	if (!qedf->p_cpuq) {
-		status = 1;
+		status = -EINVAL;
 		QEDF_ERR(&qedf->dbg_ctx, "p_cpuq is NULL.\n");
 		goto mem_alloc_failure;
 	}
@@ -3040,8 +3040,8 @@ static int qedf_alloc_global_queues(struct qedf_ctx *qedf)
 		   "qedf->global_queues=%p.\n", qedf->global_queues);
 
 	/* Allocate DMA coherent buffers for BDQ */
-	rc = qedf_alloc_bdq(qedf);
-	if (rc) {
+	status = qedf_alloc_bdq(qedf);
+	if (status) {
 		QEDF_ERR(&qedf->dbg_ctx, "Unable to allocate bdq.\n");
 		goto mem_alloc_failure;
 	}
-- 
2.20.1