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| author | Aditya Pakki <pakki001@umn.edu> | 2019-03-20 12:02:49 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-03-21 08:32:57 +0100 |
| commit | d70d70aec9632679dd00dcc1b1e8b2517e2c7da0 (patch) | |
| tree | f9aabb81d3396895d5558ce6530742f5cb2203a2 /drivers | |
| parent | 7671ce0d92933762f469266daf43bd34d422d58c (diff) | |
| download | linux-stable-d70d70aec9632679dd00dcc1b1e8b2517e2c7da0.tar.gz linux-stable-d70d70aec9632679dd00dcc1b1e8b2517e2c7da0.tar.bz2 linux-stable-d70d70aec9632679dd00dcc1b1e8b2517e2c7da0.zip | |
staging: rtlwifi: rtl8822b: fix to avoid potential NULL pointer dereference
skb allocated via dev_alloc_skb can fail and return a NULL pointer.
This patch avoids such a scenario and returns, consistent with other
invocations.
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/rtlwifi/rtl8822be/fw.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/staging/rtlwifi/rtl8822be/fw.c b/drivers/staging/rtlwifi/rtl8822be/fw.c index f061dd1382aa..cf6b7a80b753 100644 --- a/drivers/staging/rtlwifi/rtl8822be/fw.c +++ b/drivers/staging/rtlwifi/rtl8822be/fw.c @@ -743,6 +743,8 @@ void rtl8822be_set_fw_rsvdpagepkt(struct ieee80211_hw *hw, bool b_dl_finished) u1_rsvd_page_loc, 3); skb = dev_alloc_skb(totalpacketlen); + if (!skb) + return; memcpy((u8 *)skb_put(skb, totalpacketlen), &reserved_page_packet, totalpacketlen); |