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| author | Lv Yunlong <lyl2019@mail.ustc.edu.cn> | 2021-04-02 22:47:55 -0700 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2021-12-07 13:10:10 +0200 |
| commit | f973795a8d19cbf3d03807704eb7c6ff65788d5a (patch) | |
| tree | 80e0c249bc7db4e8df1803a279c3013641a8f477 /drivers/net/wireless/intel/iwlwifi/mvm | |
| parent | 46c7b05a4f91f425d429bbe152c0185e9f8a5d18 (diff) | |
| download | linux-f973795a8d19cbf3d03807704eb7c6ff65788d5a.tar.gz linux-f973795a8d19cbf3d03807704eb7c6ff65788d5a.tar.bz2 linux-f973795a8d19cbf3d03807704eb7c6ff65788d5a.zip | |
wireless: iwlwifi: Fix a double free in iwl_txq_dyn_alloc_dma
In iwl_txq_dyn_alloc_dma, txq->tfds is freed at first time by:
iwl_txq_alloc()->goto err_free_tfds->dma_free_coherent(). But
it forgot to set txq->tfds to NULL.
Then the txq->tfds is freed again in iwl_txq_dyn_alloc_dma by:
goto error->iwl_txq_gen2_free_memory()->dma_free_coherent().
My patch sets txq->tfds to NULL after the first free to avoid the
double free.
Fixes: 0cd1ad2d7fd41 ("iwlwifi: move all bus-independent TX functions to common code")
Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
Link: https://lore.kernel.org/r/20210403054755.4781-1-lyl2019@mail.ustc.edu.cn
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm')
0 files changed, 0 insertions, 0 deletions