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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-05-29 17:31:07 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-05-31 12:54:23 +0200
commite15bea0f3f75d4ee8f13b5ea76dcd210b24ef226 (patch)
tree824b349e9a1f5092b813512ac29491ae29caad45 /drivers/usb/gadget/udc/s3c2410_udc.c
parent743d1effe6c1c6b2b42e9e4ca958a4403373702d (diff)
USB: gadget: udc: s3c2410_udc: 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. Cc: Felipe Balbi <balbi@kernel.org> Cc: Li Yang <leoyang.li@nxp.com> Cc: Nicolas Ferre <nicolas.ferre@microchip.com> Cc: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/gadget/udc/s3c2410_udc.c')
-rw-r--r--drivers/usb/gadget/udc/s3c2410_udc.c17
1 files changed, 4 insertions, 13 deletions
diff --git a/drivers/usb/gadget/udc/s3c2410_udc.c b/drivers/usb/gadget/udc/s3c2410_udc.c
index f154f49e98c8..8bf5ad7a59ad 100644
--- a/drivers/usb/gadget/udc/s3c2410_udc.c
+++ b/drivers/usb/gadget/udc/s3c2410_udc.c
@@ -1871,13 +1871,9 @@ static int s3c2410_udc_probe(struct platform_device *pdev)
if (retval)
goto err_add_udc;
- if (s3c2410_udc_debugfs_root) {
- udc->regs_info = debugfs_create_file("registers", S_IRUGO,
- s3c2410_udc_debugfs_root,
- udc, &s3c2410_udc_debugfs_fops);
- if (!udc->regs_info)
- dev_warn(dev, "debugfs file creation failed\n");
- }
+ udc->regs_info = debugfs_create_file("registers", S_IRUGO,
+ s3c2410_udc_debugfs_root, udc,
+ &s3c2410_udc_debugfs_fops);
dev_dbg(dev, "probe ok\n");
@@ -1994,11 +1990,6 @@ static int __init udc_init(void)
dprintk(DEBUG_NORMAL, "%s\n", gadget_name);
s3c2410_udc_debugfs_root = debugfs_create_dir(gadget_name, NULL);
- if (IS_ERR(s3c2410_udc_debugfs_root)) {
- pr_err("%s: debugfs dir creation failed %ld\n",
- gadget_name, PTR_ERR(s3c2410_udc_debugfs_root));
- s3c2410_udc_debugfs_root = NULL;
- }
retval = platform_driver_register(&udc_driver_24x0);
if (retval)
@@ -2014,7 +2005,7 @@ err:
static void __exit udc_exit(void)
{
platform_driver_unregister(&udc_driver_24x0);
- debugfs_remove(s3c2410_udc_debugfs_root);
+ debugfs_remove_recursive(s3c2410_udc_debugfs_root);
}
module_init(udc_init);