| commit | e8f4ae85439f34bec3b0ab69223a41809dab28c9 | [log] [tgz] |
|---|---|---|
| author | Jia-Ju Bai <baijiaju1990@163.com> | Wed May 31 09:40:11 2017 +0800 |
| committer | David S. Miller <davem@davemloft.net> | Wed May 31 14:38:10 2017 -0400 |
| tree | 06a335def58c9f7583e4ea9c45005abbdbf97e83 | |
| parent | 06d2d6431bc8d41ef5ffd8bd4b52cea9f72aed22 [diff] |
isdn: Fix a sleep-in-atomic bug
The driver may sleep under a spin lock, the function call path is:
isdn_ppp_mp_receive (acquire the lock)
isdn_ppp_mp_reassembly
isdn_ppp_push_higher
isdn_ppp_decompress
isdn_ppp_ccp_reset_trans
isdn_ppp_ccp_reset_alloc_state
kzalloc(GFP_KERNEL) --> may sleep
To fixed it, the "GFP_KERNEL" is replaced with "GFP_ATOMIC".
Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>