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| author | Daniil Tatianin <d-tatianin@yandex-team.ru> | 2023-03-09 21:15:56 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-03-14 00:55:02 +0100 |
| commit | 1a9dc5610ef89d807acdcfbff93a558f341a44da (patch) | |
| tree | d4b5a8d9eafb32d029ff1bcb8b8eca4c08641267 /LICENSES | |
| parent | net/smc: fix NULL sndbuf_desc in smc_cdc_tx_handler() (diff) | |
| download | linux-1a9dc5610ef89d807acdcfbff93a558f341a44da.tar.xz linux-1a9dc5610ef89d807acdcfbff93a558f341a44da.zip | |
qed/qed_dev: guard against a possible division by zero
Previously we would divide total_left_rate by zero if num_vports
happened to be 1 because non_requested_count is calculated as
num_vports - req_count. Guard against this by validating num_vports at
the beginning and returning an error otherwise.
Found by Linux Verification Center (linuxtesting.org) with the SVACE
static analysis tool.
Fixes: bcd197c81f63 ("qed: Add vport WFQ configuration APIs")
Signed-off-by: Daniil Tatianin <d-tatianin@yandex-team.ru>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230309201556.191392-1-d-tatianin@yandex-team.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'LICENSES')
0 files changed, 0 insertions, 0 deletions