net/nfp: check value returned
Checks
Commit Message
If the call to _nfp6000_cppat_mu_locality fails, the function needs
to return with an error.
Coverity issue: 277215
Fixes: c7e9729da6b5 ("net/nfp: support CPP")
Cc: stable@dpdk.org
Signed-off-by: Alejandro Lucero <alejandro.lucero@netronome.com>
---
drivers/net/nfp/nfpcore/nfp-common/nfp_cppat.h | 3 +++
1 file changed, 3 insertions(+)
Comments
On 4/8/2019 11:10 AM, Alejandro Lucero wrote:
> If the call to _nfp6000_cppat_mu_locality fails, the function needs
> to return with an error.
>
> Coverity issue: 277215
> Fixes: c7e9729da6b5 ("net/nfp: support CPP")
> Cc: stable@dpdk.org
>
> Signed-off-by: Alejandro Lucero <alejandro.lucero@netronome.com>
Applied to dpdk-next-net/master, thanks.
(squashed with other return value check patches, since all are fixing same
commit there wouldn't be any backport concern)
@@ -368,6 +368,9 @@ _nfp6000_encode_mu(uint64_t *addr, int dest_island, int mode, int addr40,
isld[1] = isld1;
locality_lsb = _nfp6000_cppat_mu_locality_lsb(mode, addr40);
+ if (locality_lsb < 0)
+ return NFP_ERRNO(EINVAL);
+
if (((*addr >> locality_lsb) & 3) == _NIC_NFP6000_MU_LOCALITY_DIRECT)
da = 1;
else