From a61b75d10882b3732b6dba29c10b1a54ffb36819 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 29 May 2018 17:30:58 +0200 Subject: [PATCH] USB: chipidea: no need to check return value of debugfs_create functions When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Acked-by: Peter Chen Signed-off-by: Greg Kroah-Hartman --- drivers/usb/chipidea/ci.h | 2 +- drivers/usb/chipidea/core.c | 4 +-- drivers/usb/chipidea/debug.c | 56 ++++++++++-------------------------- 3 files changed, 17 insertions(+), 45 deletions(-) diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h index 98b7cb3d0064..0bf244d50544 100644 --- a/drivers/usb/chipidea/ci.h +++ b/drivers/usb/chipidea/ci.h @@ -450,7 +450,7 @@ void hw_phymode_configure(struct ci_hdrc *ci); void ci_platform_configure(struct ci_hdrc *ci); -int dbg_create_files(struct ci_hdrc *ci); +void dbg_create_files(struct ci_hdrc *ci); void dbg_remove_files(struct ci_hdrc *ci); #endif /* __DRIVERS_USB_CHIPIDEA_CI_H */ diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index 33ae87fa3ff3..85fc6db48e44 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -1062,9 +1062,7 @@ static int ci_hdrc_probe(struct platform_device *pdev) ci_hdrc_otg_fsm_start(ci); device_set_wakeup_capable(&pdev->dev, true); - ret = dbg_create_files(ci); - if (ret) - goto stop; + dbg_create_files(ci); ret = sysfs_create_group(&dev->kobj, &ci_attr_group); if (ret) diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c index ce648cb3ed94..fcc91a338875 100644 --- a/drivers/usb/chipidea/debug.c +++ b/drivers/usb/chipidea/debug.c @@ -340,54 +340,28 @@ DEFINE_SHOW_ATTRIBUTE(ci_registers); * * This function returns an error code */ -int dbg_create_files(struct ci_hdrc *ci) +void dbg_create_files(struct ci_hdrc *ci) { - struct dentry *dent; - ci->debugfs = debugfs_create_dir(dev_name(ci->dev), NULL); - if (!ci->debugfs) - return -ENOMEM; - dent = debugfs_create_file("device", S_IRUGO, ci->debugfs, ci, - &ci_device_fops); - if (!dent) - goto err; - - dent = debugfs_create_file("port_test", S_IRUGO | S_IWUSR, ci->debugfs, - ci, &ci_port_test_fops); - if (!dent) - goto err; - - dent = debugfs_create_file("qheads", S_IRUGO, ci->debugfs, ci, - &ci_qheads_fops); - if (!dent) - goto err; - - dent = debugfs_create_file("requests", S_IRUGO, ci->debugfs, ci, - &ci_requests_fops); - if (!dent) - goto err; + debugfs_create_file("device", S_IRUGO, ci->debugfs, ci, + &ci_device_fops); + debugfs_create_file("port_test", S_IRUGO | S_IWUSR, ci->debugfs, ci, + &ci_port_test_fops); + debugfs_create_file("qheads", S_IRUGO, ci->debugfs, ci, + &ci_qheads_fops); + debugfs_create_file("requests", S_IRUGO, ci->debugfs, ci, + &ci_requests_fops); if (ci_otg_is_fsm_mode(ci)) { - dent = debugfs_create_file("otg", S_IRUGO, ci->debugfs, ci, - &ci_otg_fops); - if (!dent) - goto err; + debugfs_create_file("otg", S_IRUGO, ci->debugfs, ci, + &ci_otg_fops); } - dent = debugfs_create_file("role", S_IRUGO | S_IWUSR, ci->debugfs, ci, - &ci_role_fops); - if (!dent) - goto err; - - dent = debugfs_create_file("registers", S_IRUGO, ci->debugfs, ci, - &ci_registers_fops); - - if (dent) - return 0; -err: - debugfs_remove_recursive(ci->debugfs); - return -ENOMEM; + debugfs_create_file("role", S_IRUGO | S_IWUSR, ci->debugfs, ci, + &ci_role_fops); + debugfs_create_file("registers", S_IRUGO, ci->debugfs, ci, + &ci_registers_fops); } /**