diff options
| author | Colin Ian King <colin.king@canonical.com> | 2020-12-14 23:24:17 +0000 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2020-12-17 08:45:20 +0200 |
| commit | 292bff9480c8d52fc58028979c4162abd83f1aec (patch) | |
| tree | 6427742c3a54b2c809b622775d5b2c7ae186271b /drivers/net/wireless/ath/ath11k/wmi.c | |
| parent | 13458ffe0a953e17587f172a8e5059c243e6850a (diff) | |
ath11k: add missing null check on allocated skb
Currently the null check on a newly allocated skb is missing and
this can lead to a null pointer dereference is the allocation fails.
Fix this by adding a null check and returning -ENOMEM.
Addresses-Coverity: ("Dereference null return")
Fixes: 43ed15e1ee01 ("ath11k: put hw to DBS using WMI_PDEV_SET_HW_MODE_CMDID")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201214232417.84556-1-colin.king@canonical.com
Diffstat (limited to 'drivers/net/wireless/ath/ath11k/wmi.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/wmi.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c index da4b546b62cb..73869d445c5b 100644 --- a/drivers/net/wireless/ath/ath11k/wmi.c +++ b/drivers/net/wireless/ath/ath11k/wmi.c @@ -3460,6 +3460,9 @@ int ath11k_wmi_set_hw_mode(struct ath11k_base *ab, len = sizeof(*cmd); skb = ath11k_wmi_alloc_skb(wmi_ab, len); + if (!skb) + return -ENOMEM; + cmd = (struct wmi_pdev_set_hw_mode_cmd_param *)skb->data; cmd->tlv_header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_PDEV_SET_HW_MODE_CMD) | |