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| author | Ryder Lee <ryder.lee@mediatek.com> | 2026-06-05 14:33:04 +0300 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2026-06-09 13:28:08 +0300 |
| commit | 3c5671ed81b1fff97fa868dae771690599db94f7 (patch) | |
| tree | 3e96c0a2e489e057afc7117e2caedacebff8a5c0 /include/linux | |
| parent | 05e72b6167970043348bfbe8f72a3b67a38a9f1c (diff) | |
| download | linux-3c5671ed81b1fff97fa868dae771690599db94f7.tar.xz | |
wifi: mt76: mt7921: fix potential tx_retries underflow
When FIELD_GET returns 0 for the retry count, subtracting 1 causes
an unsigned integer underflow, resulting in tx_retries becoming a
very large value (0xFFFFFFFF for u32).
Fix by checking if count is non-zero before subtracting 1.
Fixes: 9aecfa754c7f ("wifi: mt76: mt7921e: report tx retries/failed counts in tx free event")
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Link: https://patch.msgid.link/20260605113306.3485554-2-ryder.lee@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions