From: Wei Yongjun weiyongjun1@huawei.com
[ Upstream commit 6043357263fbe2df0bf0736d971ad5dce7d19dc1 ]
Add the missing unlock before return from function zynqmp_qspi_exec_op() in the error handling case.
Fixes: a0f65be6e880 ("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 --- drivers/spi/spi-zynqmp-gqspi.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/spi/spi-zynqmp-gqspi.c b/drivers/spi/spi-zynqmp-gqspi.c index 036d8ae41c06..408e348382c5 100644 --- a/drivers/spi/spi-zynqmp-gqspi.c +++ b/drivers/spi/spi-zynqmp-gqspi.c @@ -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;