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wifi: mt76: mt7915: fix mt7915_rate_txpower_get() resource leaks

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Coverity message: variable "buf" going out of scope leaks the storage.

Reported-by: coverity-bot <keescook+coverity-bot@chromium.org>
Addresses-Coverity-ID: 1527799 ("Resource leaks")
Fixes: e3296759f3 ("wifi: mt76: mt7915: enable per bandwidth power limit support")
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Ryder Lee 2022-12-03 11:22:22 +08:00 committed by Felix Fietkau
parent aec4cf2ea0
commit 8b25301af0
1 changed files with 3 additions and 1 deletions
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4
drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c
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@ -996,7 +996,7 @@ mt7915_rate_txpower_get(struct file *file, char __user *user_buf,
ret = mt7915_mcu_get_txpower_sku(phy, txpwr, sizeof(txpwr));
if (ret)
return ret;
goto out;
/* Txpower propagation path: TMAC -> TXV -> BBP */
len += scnprintf(buf + len, sz - len,
@ -1047,6 +1047,8 @@ mt7915_rate_txpower_get(struct file *file, char __user *user_buf,
mt76_get_field(dev, reg, MT_WF_PHY_TPC_POWER));
ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
out:
kfree(buf);
return ret;
}