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gpio fixes for v6.12-rc6

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- fix an issue with using an uninitialized variable in GPIO swnode code
 - add a missing return value check for devm_mutex_init()
 - fix an old issue with debugfs output
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Merge tag 'gpio-fixes-for-v6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio fixes from Bartosz Golaszewski:

 - fix an uninitialized variable in GPIO swnode code

 - add a missing return value check for devm_mutex_init()

 - fix an old issue with debugfs output

* tag 'gpio-fixes-for-v6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpiolib: fix debugfs dangling chip separator
  gpiolib: fix debugfs newline separators
  gpio: sloppy-logic-analyzer: Check for error code from devm_mutex_init() call
  gpio: fix uninit-value in swnode_find_gpio
This commit is contained in:
Linus Torvalds 2024-11-01 09:03:02 -10:00
commit edf0227abd
3 changed files with 7 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpio/gpio-sloppy-logic-analyzer.c
View File

@ -234,7 +234,9 @@ static int gpio_la_poll_probe(struct platform_device *pdev)
if (!priv)
return -ENOMEM;
devm_mutex_init(dev, &priv->blob_lock);
ret = devm_mutex_init(dev, &priv->blob_lock);
if (ret)
return ret;
fops_buf_size_set(priv, GPIO_LA_DEFAULT_BUF_SIZE);

2
drivers/gpio/gpiolib-swnode.c
View File

@ -64,7 +64,7 @@ struct gpio_desc *swnode_find_gpio(struct fwnode_handle *fwnode,
struct fwnode_reference_args args;
struct gpio_desc *desc;
char propname[32]; /* 32 is max size of property name */
int ret;
int ret = 0;
swnode = to_software_node(fwnode);
if (!swnode)

4
drivers/gpio/gpiolib.c
View File

@ -4926,6 +4926,8 @@ static void *gpiolib_seq_start(struct seq_file *s, loff_t *pos)
return NULL;
s->private = priv;
if (*pos > 0)
priv->newline = true;
priv->idx = srcu_read_lock(&gpio_devices_srcu);
list_for_each_entry_srcu(gdev, &gpio_devices, list,
@ -4969,7 +4971,7 @@ static int gpiolib_seq_show(struct seq_file *s, void *v)
gc = srcu_dereference(gdev->chip, &gdev->srcu);
if (!gc) {
seq_printf(s, "%s%s: (dangling chip)",
seq_printf(s, "%s%s: (dangling chip)\n",
priv->newline ? "\n" : "",
dev_name(&gdev->dev));
return 0;