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spi: Fix for v6.14

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This is a straightforward fix for a reference count leak in the rarely
 used SPI device mode functionality.
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Merge tag 'spi-fix-v6.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fix from Mark Brown:
 "This is a straightforward fix for a reference count leak in the rarely
  used SPI device mode functionality"

* tag 'spi-fix-v6.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: Fix reference count leak in slave_show()
This commit is contained in:
Linus Torvalds 2025-03-21 14:07:40 -07:00
commit 88d324e69e
1 changed files with 5 additions and 1 deletions
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6
drivers/spi/spi.c
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@ -2954,9 +2954,13 @@ static ssize_t slave_show(struct device *dev, struct device_attribute *attr,
struct spi_controller *ctlr = container_of(dev, struct spi_controller,
dev);
struct device *child;
int ret;
child = device_find_any_child(&ctlr->dev);
return sysfs_emit(buf, "%s\n", child ? to_spi_device(child)->modalias : NULL);
ret = sysfs_emit(buf, "%s\n", child ? to_spi_device(child)->modalias : NULL);
put_device(child);
return ret;
}
static ssize_t slave_store(struct device *dev, struct device_attribute *attr,