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spi: zynq-qspi: Add check for clk_enable()

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[ Upstream commit 8332e66709 ]

Add check for the return value of clk_enable() to catch the potential
error.

Fixes: c618a90dca ("spi: zynq-qspi: Drop GPIO header")
Signed-off-by: Mingwei Zheng <zmw12306@gmail.com>
Signed-off-by: Jiasheng Jiang <jiashengjiangcool@gmail.com>
Link: https://patch.msgid.link/20241207015206.3689364-1-zmw12306@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Mingwei Zheng
2024-12-06 20:52:06 -05:00
committed by Greg Kroah-Hartman
parent 833e9a1c27
commit 6bb87d8823
1 changed files with 11 additions and 2 deletions
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drivers/spi/spi-zynq-qspi.c
+11 -2
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@@ -379,12 +379,21 @@ static int zynq_qspi_setup_op(struct spi_device *spi)
{
struct spi_controller *ctlr = spi->master;
struct zynq_qspi *qspi = spi_controller_get_devdata(ctlr);
int ret;
if (ctlr->busy)
return -EBUSY;
clk_enable(qspi->refclk);
clk_enable(qspi->pclk);
ret = clk_enable(qspi->refclk);
if (ret)
return ret;
ret = clk_enable(qspi->pclk);
if (ret) {
clk_disable(qspi->refclk);
return ret;
}
zynq_qspi_write(qspi, ZYNQ_QSPI_ENABLE_OFFSET,
ZYNQ_QSPI_ENABLE_ENABLE_MASK);