In bnxt_hwrm_flash_nvram, before attempting to allocate a buffer
we are grabbing the rte_spinlock. And if the allocation fails we
are returning before releasing the spinlock. We avoid the situation
by calling HWRM_PREP which grabs the lock after the buffer is
allocated successfully.

Fixes: 19e6af01bb36 ("net/bnxt: support get/set EEPROM")
Cc: sta...@dpdk.org

Reviewed-by: Randy Schacher <stuart.schac...@broadcom.com>
Signed-off-by: Ajit Khaparde <ajit.khapa...@broadcom.com>
---
 drivers/net/bnxt/bnxt_hwrm.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 3f8e26ca3..5e8970ac3 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -3427,14 +3427,6 @@ int bnxt_hwrm_flash_nvram(struct bnxt *bp, uint16_t 
dir_type,
        rte_iova_t dma_handle;
        uint8_t *buf;
 
-       HWRM_PREP(req, NVM_WRITE);
-
-       req.dir_type = rte_cpu_to_le_16(dir_type);
-       req.dir_ordinal = rte_cpu_to_le_16(dir_ordinal);
-       req.dir_ext = rte_cpu_to_le_16(dir_ext);
-       req.dir_attr = rte_cpu_to_le_16(dir_attr);
-       req.dir_data_length = rte_cpu_to_le_32(data_len);
-
        buf = rte_malloc("nvm_write", data_len, 0);
        rte_mem_lock_page(buf);
        if (!buf)
@@ -3447,6 +3439,14 @@ int bnxt_hwrm_flash_nvram(struct bnxt *bp, uint16_t 
dir_type,
                return -ENOMEM;
        }
        memcpy(buf, data, data_len);
+
+       HWRM_PREP(req, NVM_WRITE);
+
+       req.dir_type = rte_cpu_to_le_16(dir_type);
+       req.dir_ordinal = rte_cpu_to_le_16(dir_ordinal);
+       req.dir_ext = rte_cpu_to_le_16(dir_ext);
+       req.dir_attr = rte_cpu_to_le_16(dir_attr);
+       req.dir_data_length = rte_cpu_to_le_32(data_len);
        req.host_src_addr = rte_cpu_to_le_64(dma_handle);
 
        rc = bnxt_hwrm_send_message(bp, &req, sizeof(req));
-- 
2.15.2 (Apple Git-101.1)

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