[PATCH 5.4 192/270] ice: Graceful error handling in HW table calloc failure

From: Greg Kroah-Hartman
Date: Mon Aug 17 2020 - 14:10:08 EST


From: Surabhi Boob <surabhi.boob@xxxxxxxxx>

[ Upstream commit bcc46cb8a077c6189b44f1555b8659837f748eb2 ]

In the ice_init_hw_tbls, if the devm_kcalloc for es->written fails, catch
that error and bail out gracefully, instead of continuing with a NULL
pointer.

Fixes: 32d63fa1e9f3 ("ice: Initialize DDP package structures")
Signed-off-by: Surabhi Boob <surabhi.boob@xxxxxxxxx>
Tested-by: Andrew Bowers <andrewx.bowers@xxxxxxxxx>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/intel/ice/ice_flex_pipe.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_flex_pipe.c b/drivers/net/ethernet/intel/ice/ice_flex_pipe.c
index cbd53b586c36f..6cfe8eb7f47dc 100644
--- a/drivers/net/ethernet/intel/ice/ice_flex_pipe.c
+++ b/drivers/net/ethernet/intel/ice/ice_flex_pipe.c
@@ -1535,10 +1535,12 @@ enum ice_status ice_init_hw_tbls(struct ice_hw *hw)
es->ref_count = devm_kcalloc(ice_hw_to_dev(hw), es->count,
sizeof(*es->ref_count),
GFP_KERNEL);
+ if (!es->ref_count)
+ goto err;

es->written = devm_kcalloc(ice_hw_to_dev(hw), es->count,
sizeof(*es->written), GFP_KERNEL);
- if (!es->ref_count)
+ if (!es->written)
goto err;
}
return 0;
--
2.25.1