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| author | Hayes Wang <[email protected]> | 2019-11-22 08:21:09 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2019-11-22 18:07:44 +0000 |
| commit | 5b1d9c17a3e0c16e1c9adf9c8a89f2735cb6dff8 (patch) | |
| tree | e3e2eb7b94cf7be4ec0886ca20fe4b125e2ed991 /drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | |
| parent | Merge tag 'linux-can-fixes-for-5.4-20191122' of git://git.kernel.org/pub/scm/... (diff) | |
| download | kernel-5b1d9c17a3e0c16e1c9adf9c8a89f2735cb6dff8.tar.gz kernel-5b1d9c17a3e0c16e1c9adf9c8a89f2735cb6dff8.zip | |
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 <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_display.c')
0 files changed, 0 insertions, 0 deletions