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| author | Prahlad V <prahlad.eee@gmail.com> | 2017-02-17 02:03:35 +0530 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-02-17 11:24:51 +0000 |
| commit | cce59c225920309e03c2ea350ed6a0e233e33963 (patch) | |
| tree | 17c48ac327b3f93ff06e18789ad894546250ad3e | |
| parent | fafd67940774733fa97f4b09412aea6981b82e0a (diff) | |
| download | linux-stable-cce59c225920309e03c2ea350ed6a0e233e33963.tar.gz linux-stable-cce59c225920309e03c2ea350ed6a0e233e33963.tar.bz2 linux-stable-cce59c225920309e03c2ea350ed6a0e233e33963.zip | |
spi: ti-qspi: revise ti_qspi_probe() failure flow
call spi_master_put() in case of failures after spi_alloc_master().
call pm_runtime_disable() in case of failures after pm_runtime_enable().
Signed-off-by: Prahlad V <prahlad.eee@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | drivers/spi/spi-ti-qspi.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c index ec6fb09e2e17..e784d0f64dc1 100644 --- a/drivers/spi/spi-ti-qspi.c +++ b/drivers/spi/spi-ti-qspi.c @@ -652,7 +652,8 @@ static int ti_qspi_probe(struct platform_device *pdev) r = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (r == NULL) { dev_err(&pdev->dev, "missing platform data\n"); - return -ENODEV; + ret = -ENODEV; + goto free_master; } } @@ -669,7 +670,8 @@ static int ti_qspi_probe(struct platform_device *pdev) irq = platform_get_irq(pdev, 0); if (irq < 0) { dev_err(&pdev->dev, "no irq resource?\n"); - return irq; + ret = irq; + goto free_master; } mutex_init(&qspi->list_lock); @@ -685,15 +687,17 @@ static int ti_qspi_probe(struct platform_device *pdev) qspi->ctrl_base = syscon_regmap_lookup_by_phandle(np, "syscon-chipselects"); - if (IS_ERR(qspi->ctrl_base)) - return PTR_ERR(qspi->ctrl_base); + if (IS_ERR(qspi->ctrl_base)) { + ret = PTR_ERR(qspi->ctrl_base); + goto free_master; + } ret = of_property_read_u32_index(np, "syscon-chipselects", 1, &qspi->ctrl_reg); if (ret) { dev_err(&pdev->dev, "couldn't get ctrl_mod reg index\n"); - return ret; + goto free_master; } } @@ -742,6 +746,7 @@ no_dma: if (!ret) return 0; + pm_runtime_disable(&pdev->dev); free_master: spi_master_put(master); return ret; |