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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-05-29 17:30:57 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-05-31 12:54:22 +0200
commitb8fc7743406d883e68d60ad6e73a86ae9059f1e6 (patch)
tree07090ac3f48d8995abd14eb4ba078e3c9a4737b2 /drivers/usb/host/ehci-dbg.c
parent2ee127242a52267456610158f13126e64e1bdecd (diff)
USB: ehci-hcd: 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: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/ehci-dbg.c')
-rw-r--r--drivers/usb/host/ehci-dbg.c30
1 files changed, 8 insertions, 22 deletions
diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c
index 3ed75aaa09d9..7619cfb06883 100644
--- a/drivers/usb/host/ehci-dbg.c
+++ b/drivers/usb/host/ehci-dbg.c
@@ -1028,29 +1028,15 @@ static inline void create_debug_files(struct ehci_hcd *ehci)
struct usb_bus *bus = &ehci_to_hcd(ehci)->self;
ehci->debug_dir = debugfs_create_dir(bus->bus_name, ehci_debug_root);
- if (!ehci->debug_dir)
- return;
- if (!debugfs_create_file("async", S_IRUGO, ehci->debug_dir, bus,
- &debug_async_fops))
- goto file_error;
-
- if (!debugfs_create_file("bandwidth", S_IRUGO, ehci->debug_dir, bus,
- &debug_bandwidth_fops))
- goto file_error;
-
- if (!debugfs_create_file("periodic", S_IRUGO, ehci->debug_dir, bus,
- &debug_periodic_fops))
- goto file_error;
-
- if (!debugfs_create_file("registers", S_IRUGO, ehci->debug_dir, bus,
- &debug_registers_fops))
- goto file_error;
-
- return;
-
-file_error:
- debugfs_remove_recursive(ehci->debug_dir);
+ debugfs_create_file("async", S_IRUGO, ehci->debug_dir, bus,
+ &debug_async_fops);
+ debugfs_create_file("bandwidth", S_IRUGO, ehci->debug_dir, bus,
+ &debug_bandwidth_fops);
+ debugfs_create_file("periodic", S_IRUGO, ehci->debug_dir, bus,
+ &debug_periodic_fops);
+ debugfs_create_file("registers", S_IRUGO, ehci->debug_dir, bus,
+ &debug_registers_fops);
}
static inline void remove_debug_files(struct ehci_hcd *ehci)