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authorWilliam Breathitt Gray <vilhelm.gray@gmail.com>2022-03-15 15:38:53 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-03-18 14:04:30 +0100
commit4da08477ea1f0410c0df48cd956b12a54bc8217b (patch)
tree40b493f9eddd484b1ba5da67bfef342acb7a1395 /drivers/counter
parent95c211f03fc760329e2afcc58cec55556f07e1e9 (diff)
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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.c12
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;