From: Jiasheng Jiang <jiasheng@xxxxxxxxxxx>
[ Upstream commit 407ecd1bd726f240123f704620d46e285ff30dd9 ]
The return value of kmalloc() needs to be checked.
To avoid use in efx_nic_update_stats() in case of the failure of alloc.
Fixes: b593b6f1b492 ("sfc_ef100: statistics gathering")
Signed-off-by: Jiasheng Jiang <jiasheng@xxxxxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/sfc/ef100_nic.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/net/ethernet/sfc/ef100_nic.c b/drivers/net/ethernet/sfc/ef100_nic.c
index 3148fe7703564..cb6897c2193c2 100644
--- a/drivers/net/ethernet/sfc/ef100_nic.c
+++ b/drivers/net/ethernet/sfc/ef100_nic.c
@@ -597,6 +597,9 @@ static size_t ef100_update_stats(struct efx_nic *efx,
ef100_common_stat_mask(mask);
ef100_ethtool_stat_mask(mask);
+ if (!mc_stats)
+ return 0;
+
efx_nic_copy_stats(efx, mc_stats);
efx_nic_update_stats(ef100_stat_desc, EF100_STAT_COUNT, mask,
stats, mc_stats, false);
--
2.33.0
