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Subject[PATCH] net: rtl8192c: fix a potential NULL pointer dereference
Date
In case dev_alloc_skb fails, the fix safely returns to avoid
potential NULL pointer dereference.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
---
drivers/net/wireless/realtek/rtlwifi/rtl8192c/fw_common.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192c/fw_common.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192c/fw_common.c
index 18c76990a089..9042fc044c7e 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192c/fw_common.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192c/fw_common.c
@@ -623,6 +623,9 @@ void rtl92c_set_fw_rsvdpagepkt(struct ieee80211_hw *hw,
u1rsvdpageloc, 3);

skb = dev_alloc_skb(totalpacketlen);
+ if (!skb)
+ return;
+
skb_put_data(skb, &reserved_page_packet, totalpacketlen);

if (cmd_send_packet)
--
2.17.1
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