Wei Yongjun
1cd4063dbc
NFC: st21nfca: Fix memory leak in device probe and remove ...
[ Upstream commit 1b9dadba502234eea7244879b8d5d126bfaf9f0c ]
'phy->pending_skb' is alloced when device probe, but forgot to free
in the error handling path and remove path, this cause memory leak
as follows:
unreferenced object 0xffff88800bc06800 (size 512):
comm "8", pid 11775, jiffies 4295159829 (age 9.032s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<00000000d66c09ce>] __kmalloc_node_track_caller+0x1ed/0x450
[<00000000c93382b3>] kmalloc_reserve+0x37/0xd0
[<000000005fea522c>] __alloc_skb+0x124/0x380
[<0000000019f29f9a>] st21nfca_hci_i2c_probe+0x170/0x8f2
Fix it by freeing 'pending_skb' in error and remove.
Fixes: 68957303f44a ("NFC: ST21NFCA: Add driver for STMicroelectronics ST21NFCA NFC Chip")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-05 12:37:44 +01:00
2020-04-01 11:01:38 +02:00
2019-06-05 17:37:12 +02:00
2019-08-05 10:25:48 -07:00
2019-12-31 16:41:49 +01:00
2021-11-17 09:48:47 +01:00
2020-03-05 16:43:32 +01:00
2020-12-30 11:51:26 +01:00
2022-01-05 12:37:44 +01:00
2020-09-17 13:47:45 +02:00
2019-07-25 11:48:06 -07:00
2019-05-21 10:50:46 +02:00
2021-08-04 12:27:38 +02:00
2021-11-02 19:46:12 +01:00
2019-06-05 17:37:15 +02:00
1cd4063dbc