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| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2022-05-29 09:31:53 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-17 16:14:07 +0300 |
| commit | d1f0f5a5b2fa4767e4e1ec56c3095291357b116b (patch) | |
| tree | 101a16c6b9dd74a68b8c465f28030f373ac670ca /drivers/spi | |
| parent | 73dd39f55a5a2a793eaf73415f5da582b2d697eb (diff) | |
| download | linux-d1f0f5a5b2fa4767e4e1ec56c3095291357b116b.tar.xz | |
spi: spi-altera-dfl: Fix an error handling path
[ Upstream commit 8e3ca32f46994e74b7f43c57731150b2aedb2630 ]
The spi_alloc_master() call is not undone in all error handling paths.
Moreover, there is no .remove function to release the allocated memory.
In order to fix both this issues, switch to devm_spi_alloc_master().
This allows further simplification of the probe.
Fixes: ba2fc167e944 ("spi: altera: Add DFL bus driver for Altera API Controller")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/0607bb59f4073f86abe5c585d35245aef0b045c6.1653805901.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-altera-dfl.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/drivers/spi/spi-altera-dfl.c b/drivers/spi/spi-altera-dfl.c index ca40923258af..596e181ae136 100644 --- a/drivers/spi/spi-altera-dfl.c +++ b/drivers/spi/spi-altera-dfl.c @@ -128,9 +128,9 @@ static int dfl_spi_altera_probe(struct dfl_device *dfl_dev) struct spi_master *master; struct altera_spi *hw; void __iomem *base; - int err = -ENODEV; + int err; - master = spi_alloc_master(dev, sizeof(struct altera_spi)); + master = devm_spi_alloc_master(dev, sizeof(struct altera_spi)); if (!master) return -ENOMEM; @@ -159,10 +159,9 @@ static int dfl_spi_altera_probe(struct dfl_device *dfl_dev) altera_spi_init_master(master); err = devm_spi_register_master(dev, master); - if (err) { - dev_err(dev, "%s failed to register spi master %d\n", __func__, err); - goto exit; - } + if (err) + return dev_err_probe(dev, err, "%s failed to register spi master\n", + __func__); if (dfl_dev->revision == FME_FEATURE_REV_MAX10_SPI_N5010) strscpy(board_info.modalias, "m10-n5010", SPI_NAME_SIZE); @@ -179,9 +178,6 @@ static int dfl_spi_altera_probe(struct dfl_device *dfl_dev) } return 0; -exit: - spi_master_put(master); - return err; } static const struct dfl_device_id dfl_spi_altera_ids[] = { |