| Message ID | 0607bb59f4073f86abe5c585d35245aef0b045c6.1653805901.git.christophe.jaillet@wanadoo.fr |
|---|---|
| State | Accepted |
| Commit | 8e3ca32f46994e74b7f43c57731150b2aedb2630 |
| Headers | show |
| Series | spi: spi-altera-dfl: Fix an error handling path | expand |
On Sun, 29 May 2022 08:31:53 +0200, Christophe JAILLET wrote: > 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. > > [...] Applied to https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next Thanks! [1/1] spi: spi-altera-dfl: Fix an error handling path commit: 8e3ca32f46994e74b7f43c57731150b2aedb2630 All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark
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[] = {
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> --- drivers/spi/spi-altera-dfl.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-)