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spi: spi-zynqmp-gqspi: Fix missing unlock on error in zynqmp_qspi_exec_op()

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[ Upstream commit 6043357263 ]

Add the missing unlock before return from function zynqmp_qspi_exec_op()
in the error handling case.

Fixes: a0f65be6e8 ("spi: spi-zynqmp-gqspi: add mutex locking for exec_op")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20210412160025.194171-1-weiyongjun1@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Wei Yongjun 2021-04-12 16:00:25 +00:00 • committed by Greg Kroah-Hartman
commit 73585b2714
1 changed files with 3 additions and 1 deletions
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4
drivers/spi/spi-zynqmp-gqspi.c
View file

@ -965,8 +965,10 @@ static int zynqmp_qspi_exec_op(struct spi_mem *mem,
if (op->cmd.opcode) {
tmpbuf = kzalloc(op->cmd.nbytes, GFP_KERNEL | GFP_DMA);
if (!tmpbuf)
if (!tmpbuf) {
mutex_unlock(&xqspi->op_lock);
return -ENOMEM;
}
tmpbuf[0] = op->cmd.opcode;
reinit_completion(&xqspi->data_completion);
xqspi->txbuf = tmpbuf;