[dpdk-dev] [PATCH] net/nfp: check value returned

[Alejandro Lucero]

Call to CPP read can fail.

Coverity issue: 277209
Fixes: c7e9729da6b5 ("net/nfp: support CPP")
Cc: sta...@dpdk.org

Signed-off-by: Alejandro Lucero <alejandro.luc...@netronome.com>
---
 drivers/net/nfp/nfpcore/nfp_cppcore.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/nfp/nfpcore/nfp_cppcore.c 
b/drivers/net/nfp/nfpcore/nfp_cppcore.c
index 75d3c9748..2ca4283c4 100644
--- a/drivers/net/nfp/nfpcore/nfp_cppcore.c
+++ b/drivers/net/nfp/nfpcore/nfp_cppcore.c
@@ -801,7 +801,8 @@ __nfp_cpp_model_autodetect(struct nfp_cpp *cpp)
        uint32_t arm_id = NFP_CPP_ID(NFP_CPP_TARGET_ARM, 0, 0);
        uint32_t model = 0;
 
-       nfp_cpp_readl(cpp, arm_id, NFP6000_ARM_GCSR_SOFTMODEL0, &model);
+       if (nfp_cpp_readl(cpp, arm_id, NFP6000_ARM_GCSR_SOFTMODEL0, &model))
+               return 0;
 
        if (NFP_CPP_MODEL_IS_6000(model)) {
                uint32_t tmp;
-- 
2.17.1