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Merge tag 'spi-fix-v6.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

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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
parent 21d1ccf0e9 176fda56d7
commit 88d324e69e
1 changed files with 5 additions and 1 deletions
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drivers/spi/spi.c
+5 -1
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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, struct spi_controller *ctlr = container_of(dev, struct spi_controller,
dev); dev);
struct device *child; struct device *child;
int ret;
child = device_find_any_child(&ctlr->dev); 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, static ssize_t slave_store(struct device *dev, struct device_attribute *attr,