From: zpershuai <zpershuai@gmail.com>
To: Mark Brown <broonie@kernel.org>,
Michal Simek <michal.simek@xilinx.com>,
linux-spi@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Cc: zpershuai <zpershuai@gmail.com>
Subject: [PATCH] spi: spi-zynq-qspi: Fix some wrong goto jumps & missing error code
Date: Thu, 27 May 2021 18:20:57 +0800 [thread overview]
Message-ID: <1622110857-21812-1-git-send-email-zpershuai@gmail.com> (raw)
In zynq_qspi_probe function, when enable the device clock is done,
the return of all the functions should goto the clk_dis_all label.
If num_cs is not right then this should return a negative error
code but currently it returns success.
Signed-off-by: zpershuai <zpershuai@gmail.com>
---
drivers/spi/spi-zynq-qspi.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/spi/spi-zynq-qspi.c b/drivers/spi/spi-zynq-qspi.c
index 5a3d81c31d04..9262c6418463 100644
--- a/drivers/spi/spi-zynq-qspi.c
+++ b/drivers/spi/spi-zynq-qspi.c
@@ -678,14 +678,14 @@ static int zynq_qspi_probe(struct platform_device *pdev)
xqspi->irq = platform_get_irq(pdev, 0);
if (xqspi->irq <= 0) {
ret = -ENXIO;
- goto remove_master;
+ goto clk_dis_all;
}
ret = devm_request_irq(&pdev->dev, xqspi->irq, zynq_qspi_irq,
0, pdev->name, xqspi);
if (ret != 0) {
ret = -ENXIO;
dev_err(&pdev->dev, "request_irq failed\n");
- goto remove_master;
+ goto clk_dis_all;
}
ret = of_property_read_u32(np, "num-cs",
@@ -693,8 +693,9 @@ static int zynq_qspi_probe(struct platform_device *pdev)
if (ret < 0) {
ctlr->num_chipselect = 1;
} else if (num_cs > ZYNQ_QSPI_MAX_NUM_CS) {
+ ret = -EINVAL;
dev_err(&pdev->dev, "only 2 chip selects are available\n");
- goto remove_master;
+ goto clk_dis_all;
} else {
ctlr->num_chipselect = num_cs;
}
--
2.17.1
next reply other threads:[~2021-05-27 10:21 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-27 10:20 zpershuai [this message]
2021-06-02 16:16 ` Mark Brown
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