[PATCH 09/13] mpt3sas: Fail release cmnd if diag buffer is released

[Sreekanth Reddy]

Return the diag buffer release command with -EINVAL status if the buffer
is already released.

Signed-off-by: Sreekanth Reddy <sreekanth.re...@broadcom.com>
---
 drivers/scsi/mpt3sas/mpt3sas_ctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_ctl.c 
b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
index 62e878d..9267ffe 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_ctl.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
@@ -2235,7 +2235,7 @@ _ctl_diag_release(struct MPT3SAS_ADAPTER *ioc, void 
__user *arg)
            MPT3_DIAG_BUFFER_IS_RELEASED) {
                ioc_err(ioc, "%s: buffer_type(0x%02x) is already released\n",
                        __func__, buffer_type);
-               return 0;
+               return -EINVAL;
        }
 
        request_data = ioc->diag_buffer[buffer_type];
-- 
1.8.3.1