diff options
| author | William Breathitt Gray <vilhelm.gray@gmail.com> | 2022-03-15 20:38:53 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-03-18 14:04:30 +0100 |
| commit | 4da08477ea1f0410c0df48cd956b12a54bc8217b (patch) | |
| tree | 40b493f9eddd484b1ba5da67bfef342acb7a1395 /drivers/counter | |
| parent | counter: 104-quad-8: Add COMPILE_TEST depends (diff) | |
| download | linux-4da08477ea1f0410c0df48cd956b12a54bc8217b.tar.xz linux-4da08477ea1f0410c0df48cd956b12a54bc8217b.zip | |
counter: Set counter device name
Naming the counter device provides a convenient way to identify it in
devres_log events and similar situations. This patch names the counter
device by combining the prefix "counter" with the counter device's
unique ID.
Link: https://lore.kernel.org/r/20220204084551.16397-1-vilhelm.gray@gmail.com
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Link: https://lore.kernel.org/r/87cc8eb4c84f49f89290577dc9231b2e4d7d3e8c.1647373009.git.vilhelm.gray@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/counter')
| -rw-r--r-- | drivers/counter/counter-core.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/counter/counter-core.c b/drivers/counter/counter-core.c index 869894b74741..938651f9e9e0 100644 --- a/drivers/counter/counter-core.c +++ b/drivers/counter/counter-core.c @@ -22,6 +22,8 @@ #include "counter-chrdev.h" #include "counter-sysfs.h" +#define COUNTER_NAME "counter" + /* Provides a unique ID for each counter device */ static DEFINE_IDA(counter_ida); @@ -113,8 +115,15 @@ struct counter_device *counter_alloc(size_t sizeof_priv) device_initialize(dev); + err = dev_set_name(dev, COUNTER_NAME "%d", dev->id); + if (err) + goto err_dev_set_name; + return counter; +err_dev_set_name: + + counter_chrdev_remove(counter); err_chrdev_add: ida_free(&counter_ida, dev->id); @@ -247,7 +256,8 @@ static int __init counter_init(void) if (err < 0) return err; - err = alloc_chrdev_region(&counter_devt, 0, COUNTER_DEV_MAX, "counter"); + err = alloc_chrdev_region(&counter_devt, 0, COUNTER_DEV_MAX, + COUNTER_NAME); if (err < 0) goto err_unregister_bus; |