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(parent: ccef844) | patch
spi: spi-topcliff-pch: Fix potential double free in pch_spi_process_messages()
authorJay Fang <f.fangjian@huawei.com>
Thu, 6 May 2021 07:08:08 +0000 (15:08 +0800)
committerMark Brown <broonie@kernel.org>
Mon, 10 May 2021 12:17:16 +0000 (13:17 +0100)
commit026a1dc1af52742c5897e64a3431445371a71871
treee10117665b9daaeeb4466dc749f10c57346ec528tree | snapshot
parentccef8441fb2d352fa982f6607f471cdd17b30741commit | diff
spi: spi-topcliff-pch: Fix potential double free in pch_spi_process_messages()

pch_spi_set_tx() frees data->pkt_tx_buff on failure of kzalloc() for
data->pkt_rx_buff, but its caller, pch_spi_process_messages(), will
free data->pkt_tx_buff again. Set data->pkt_tx_buff to NULL after
kfree() to avoid double free.

Signed-off-by: Jay Fang <f.fangjian@huawei.com>
Link: https://lore.kernel.org/r/1620284888-65215-1-git-send-email-f.fangjian@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
drivers/spi/spi-topcliff-pch.c diff | blob | history
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