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| author | Lv Yunlong <lyl2019@mail.ustc.edu.cn> | 2021-04-02 10:40:19 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-04-06 16:15:21 -0700 |
| commit | b25b343db0526669947a427e9a31bac91d29bb06 (patch) | |
| tree | 837512aec7bdcaf0c48bee264a43075c774afa8c /include | |
| parent | 08c27f3322fec11950b8f1384aa0f3b11d028528 (diff) | |
net: broadcom: bcm4908enet: Fix a double free in bcm4908_enet_dma_alloc
In bcm4908_enet_dma_alloc, if callee bcm4908_dma_alloc_buf_descs() failed,
it will free the ring->cpu_addr by dma_free_coherent() and return error.
Then bcm4908_enet_dma_free() will be called, and free the same cpu_addr
by dma_free_coherent() again.
My patch set ring->cpu_addr to NULL after it is freed in
bcm4908_dma_alloc_buf_descs() to avoid the double free.
Fixes: 4feffeadbcb2e ("net: broadcom: bcm4908enet: add BCM4908 controller driver")
Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions