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author | Hayes Wang <hayeswang@realtek.com> | 2019-11-22 16:21:09 +0800 |
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committer | David S. Miller <davem@davemloft.net> | 2019-11-22 10:07:44 -0800 |
commit | 5b1d9c17a3e0c16e1c9adf9c8a89f2735cb6dff8 (patch) | |
tree | e3e2eb7b94cf7be4ec0886ca20fe4b125e2ed991 /net/sctp/sm_statefuns.c | |
parent | 068299374cc4ef9a1990adda2d66c4afcacd5277 (diff) | |
download | linux-5b1d9c17a3e0c16e1c9adf9c8a89f2735cb6dff8.tar.gz |
r8152: avoid to call napi_disable twice
Call napi_disable() twice would cause dead lock. There are three situations may result in the issue. 1. rtl8152_pre_reset() and set_carrier() are run at the same time. 2. Call rtl8152_set_tunable() after rtl8152_close(). 3. Call rtl8152_set_ringparam() after rtl8152_close(). For #1, use the same solution as commit 84811412464d ("r8152: Re-order napi_disable in rtl8152_close"). For #2 and #3, add checking the flag of IFF_UP and using napi_disable/napi_enable during mutex. Signed-off-by: Hayes Wang <hayeswang@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp/sm_statefuns.c')
0 files changed, 0 insertions, 0 deletions