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authorNavid Emamdoost <navid.emamdoost@gmail.com>2019-09-30 23:52:40 +0300
committerMark Brown <broonie@kernel.org>2019-10-01 20:38:52 +0300
commitd3b0ffa1d75d5305ebe34735598993afbb8a869d (patch)
tree991c195aa1b2dfa984f0fde403590a6c5aa239fe /drivers/spi/spi-gpio.c
parent6b04e47b73f2a0d2c330cecca99f8e2cb8f85b34 (diff)
downloadlinux-d3b0ffa1d75d5305ebe34735598993afbb8a869d.tar.xz
spi: gpio: prevent memory leak in spi_gpio_probe
In spi_gpio_probe an SPI master is allocated via spi_alloc_master, but this controller should be released if devm_add_action_or_reset fails, otherwise memory leaks. In order to avoid leak spi_contriller_put must be called in case of failure for devm_add_action_or_reset. Fixes: 8b797490b4db ("spi: gpio: Make sure spi_master_put() is called in every error path") Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com> Link: https://lore.kernel.org/r/20190930205241.5483-1-navid.emamdoost@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-gpio.c')
-rw-r--r--drivers/spi/spi-gpio.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/spi/spi-gpio.c b/drivers/spi/spi-gpio.c
index 1d3e23ec20a6..f9c5bbb74714 100644
--- a/drivers/spi/spi-gpio.c
+++ b/drivers/spi/spi-gpio.c
@@ -371,8 +371,10 @@ static int spi_gpio_probe(struct platform_device *pdev)
return -ENOMEM;
status = devm_add_action_or_reset(&pdev->dev, spi_gpio_put, master);
- if (status)
+ if (status) {
+ spi_master_put(master);
return status;
+ }
if (of_id)
status = spi_gpio_probe_dt(pdev, master);