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| author | Kangjie Lu <kjlu@umn.edu> | 2019-03-12 06:31:07 +0100 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2019-04-04 12:17:55 +0200 |
| commit | e5b9b206f3f6376b9a1406b67eafe4e7bb9f123c (patch) | |
| tree | 57bb0359ae8b27213cae54986e03078125aa37d8 /drivers/net/wireless/marvell | |
| parent | iwlegacy: remove redundant assignment to *res (diff) | |
| download | linux-e5b9b206f3f6376b9a1406b67eafe4e7bb9f123c.tar.xz linux-e5b9b206f3f6376b9a1406b67eafe4e7bb9f123c.zip | |
net: mwifiex: fix a NULL pointer dereference
In case dev_alloc_skb fails, the fix returns -ENOMEM to avoid
NULL pointer dereference.
Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/marvell')
| -rw-r--r-- | drivers/net/wireless/marvell/mwifiex/cmdevt.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/wireless/marvell/mwifiex/cmdevt.c b/drivers/net/wireless/marvell/mwifiex/cmdevt.c index 60db2b969e20..8c35441fd9b7 100644 --- a/drivers/net/wireless/marvell/mwifiex/cmdevt.c +++ b/drivers/net/wireless/marvell/mwifiex/cmdevt.c @@ -341,6 +341,12 @@ static int mwifiex_dnld_sleep_confirm_cmd(struct mwifiex_adapter *adapter) sleep_cfm_tmp = dev_alloc_skb(sizeof(struct mwifiex_opt_sleep_confirm) + MWIFIEX_TYPE_LEN); + if (!sleep_cfm_tmp) { + mwifiex_dbg(adapter, ERROR, + "SLEEP_CFM: dev_alloc_skb failed\n"); + return -ENOMEM; + } + skb_put(sleep_cfm_tmp, sizeof(struct mwifiex_opt_sleep_confirm) + MWIFIEX_TYPE_LEN); put_unaligned_le32(MWIFIEX_USB_TYPE_CMD, sleep_cfm_tmp->data); |