[PATCH] [SCSI] esas2r: unlock on error in esas2r_nvram_read_direct()

[Dan Carpenter]

This error path is missing an unlock.

Fixes: 26780d9e12ed ("[SCSI] esas2r: ATTO Technology ExpressSAS 6G SAS/SATA 
RAID Adapter Driver")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
---
 drivers/scsi/esas2r/esas2r_flash.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/esas2r/esas2r_flash.c 
b/drivers/scsi/esas2r/esas2r_flash.c
index 7bd376d95ed5..b02ac389e6c6 100644
--- a/drivers/scsi/esas2r/esas2r_flash.c
+++ b/drivers/scsi/esas2r/esas2r_flash.c
@@ -1197,6 +1197,7 @@ bool esas2r_nvram_read_direct(struct esas2r_adapter *a)
        if (!esas2r_read_flash_block(a, a->nvram, FLS_OFFSET_NVR,
                                     sizeof(struct esas2r_sas_nvram))) {
                esas2r_hdebug("NVRAM read failed, using defaults");
+               up(&a->nvram_semaphore);
                return false;
        }
 
-- 
2.20.1