From 539d890cecee6b5d7304914afc51b7f53150163d Mon Sep 17 00:00:00 2001 From: Uma Krishnan Date: Wed, 21 Jun 2017 21:13:48 -0500 Subject: [PATCH] scsi: cxlflash: Update cxlflash_afu_sync() to return errno The cxlflash_afu_sync() routine returns a negative one to indicate any kind of failure. This makes it impossible to establish why the error occurred. Update the return codes to clearly indicate the failure cause to the caller. Signed-off-by: Uma Krishnan Acked-by: Matthew R. Ochs Signed-off-by: Martin K. Petersen --- drivers/scsi/cxlflash/main.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/cxlflash/main.c b/drivers/scsi/cxlflash/main.c index 64ea597ca98e..815d04b3e7aa 100644 --- a/drivers/scsi/cxlflash/main.c +++ b/drivers/scsi/cxlflash/main.c @@ -2022,8 +2022,7 @@ err1: * going away). * * Return: - * 0 on success - * -1 on failure + * 0 on success, -errno on failure */ int cxlflash_afu_sync(struct afu *afu, ctx_hndl_t ctx_hndl_u, res_hndl_t res_hndl_u, u8 mode) @@ -2047,7 +2046,7 @@ int cxlflash_afu_sync(struct afu *afu, ctx_hndl_t ctx_hndl_u, buf = kzalloc(sizeof(*cmd) + __alignof__(*cmd) - 1, GFP_KERNEL); if (unlikely(!buf)) { dev_err(dev, "%s: no memory for command\n", __func__); - rc = -1; + rc = -ENOMEM; goto out; } @@ -2071,12 +2070,14 @@ int cxlflash_afu_sync(struct afu *afu, ctx_hndl_t ctx_hndl_u, *((__be32 *)&cmd->rcb.cdb[4]) = cpu_to_be32(res_hndl_u); rc = afu->send_cmd(afu, cmd); - if (unlikely(rc)) + if (unlikely(rc)) { + rc = -ENOBUFS; goto out; + } rc = wait_resp(afu, cmd); if (unlikely(rc)) - rc = -1; + rc = -EIO; out: atomic_dec(&afu->cmds_active); mutex_unlock(&sync_active); -- 2.20.1