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| author | Bryan O'Donoghue | 2015-09-14 11:48:42 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2015-09-15 06:35:58 +0200 |
| commit | c7ea5ed6f2790240a8ddaf98905a9465a37e839e (patch) | |
| tree | b90612cb54af5681d09eb6d5b6ac8d85151c15aa /drivers/staging/greybus/loopback.c | |
| parent | greybus: loopback: exit kfree after mutex release (diff) | |
| download | kernel-qcow2-linux-c7ea5ed6f2790240a8ddaf98905a9465a37e839e.tar.gz kernel-qcow2-linux-c7ea5ed6f2790240a8ddaf98905a9465a37e839e.tar.xz kernel-qcow2-linux-c7ea5ed6f2790240a8ddaf98905a9465a37e839e.zip | |
greybus: loopback: ensure debugfs entires are cleaned up on exit
bdd4bba4 ('greybus/loopback: add module level sys/debug fs data points')
added a debugfs entry attached to gb_dev but omitted the cleanup on gb_init
error and gb_exit. This patchs fixes the missing debugfs_remove().
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reported-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Diffstat (limited to 'drivers/staging/greybus/loopback.c')
| -rw-r--r-- | drivers/staging/greybus/loopback.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/staging/greybus/loopback.c b/drivers/staging/greybus/loopback.c index 745490af7e47..8bfeec8f71a0 100644 --- a/drivers/staging/greybus/loopback.c +++ b/drivers/staging/greybus/loopback.c @@ -34,6 +34,7 @@ struct gb_loopback_stats { struct gb_loopback_device { struct dentry *root; + struct dentry *file; u32 count; struct kfifo kfifo; @@ -860,9 +861,9 @@ static int gb_loopback_connection_init(struct gb_connection *connection) if (!gb_dev.count) { snprintf(name, sizeof(name), "raw_latency_endo0:%d", connection->bundle->intf->module->module_id); - debugfs_create_file(name, S_IFREG | S_IRUGO, - gb_dev.root, &gb_dev, - &gb_loopback_debugfs_dev_latency_ops); + gb_dev.file = debugfs_create_file(name, S_IFREG | S_IRUGO, + gb_dev.root, &gb_dev, + &gb_loopback_debugfs_dev_latency_ops); retval = sysfs_create_groups(kobj, loopback_dev_groups); if (retval) goto out_sysfs; @@ -925,8 +926,10 @@ out_kfifo0: out_sysfs_conn: sysfs_remove_groups(&connection->dev.kobj, loopback_con_groups); out_sysfs_dev: - if (!gb_dev.count) + if (!gb_dev.count) { sysfs_remove_groups(kobj, loopback_dev_groups); + debugfs_remove(gb_dev.file); + } debugfs_remove(gb->file); connection->private = NULL; out_sysfs: @@ -950,8 +953,10 @@ static void gb_loopback_connection_exit(struct gb_connection *connection) kfifo_free(&gb->kfifo_lat); kfifo_free(&gb->kfifo_ts); gb_dev.count--; - if (!gb_dev.count) + if (!gb_dev.count) { sysfs_remove_groups(kobj, loopback_dev_groups); + debugfs_remove(gb_dev.file); + } sysfs_remove_groups(&connection->dev.kobj, loopback_con_groups); debugfs_remove(gb->file); list_del(&gb->entry); |