On 06/02/2017 08:40 AM, Colin King wrote:
External Email
From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
The current code allocates cmd_skb and then will leak this if band->band
is an illegal value. It is simpler to sanity check the band first before
allocating cmd_skb so that we don't have to free cmd_skb if an invalid
band occurs.
Detected by CoverityScan, CID#1437561 ("Resource Leak")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
drivers/net/wireless/quantenna/qtnfmac/commands.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/net/wireless/quantenna/qtnfmac/commands.c b/drivers/net/wireless/quantenna/qtnfmac/commands.c
index f0a0cfa7d8a1..cce62f39edaf 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/commands.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/commands.c
@@ -1300,12 +1300,6 @@ int qtnf_cmd_get_mac_chan_info(struct qtnf_wmac *mac,
int ret = 0;
u8 qband;
- cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, 0,
- QLINK_CMD_CHANS_INFO_GET,
- sizeof(*cmd));
- if (!cmd_skb)
- return -ENOMEM;
-
switch (band->band) {
case NL80211_BAND_2GHZ:
qband = QLINK_BAND_2GHZ;
@@ -1320,6 +1314,12 @@ int qtnf_cmd_get_mac_chan_info(struct qtnf_wmac *mac,
return -EINVAL;
}
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, 0,
+ QLINK_CMD_CHANS_INFO_GET,
+ sizeof(*cmd));
+ if (!cmd_skb)
+ return -ENOMEM;
+
cmd = (struct qlink_cmd_chans_info_get *)cmd_skb->data;
cmd->band = qband;
ret = qtnf_cmd_send_with_reply(mac->bus, cmd_skb, &resp_skb, &res_code,
--
2.11.0
Reviewed-by: Igor Mitsyanko <igor.mitsyanko.os@xxxxxxxxxxxxx>
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