net: sparx5: switchdev: fix possible NULL pointer dereference

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As the possible failure of the allocation, devm_kzalloc() may return NULL
pointer.
Therefore, it should be better to check the 'db' in order to prevent
the dereference of NULL pointer.

Fixes: 10615907e9 ("net: sparx5: switchdev: adding frame DMA functionality")
Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Zheng Yongjun 2022-03-26 08:12:39 +00:00 • committed by David S. Miller

parent 7781607938

commit 0906f3a3df

1 changed files with 2 additions and 0 deletions

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drivers/net/ethernet/microchip/sparx5/sparx5_fdma.c

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