debugfs_create_dir() returns ERR_PTR and never return NULL.
As Russell suggested, this patch removes the error checking for
debugfs_create_dir(). This is because the DebugFS kernel API is developed
in a way that the caller can safely ignore the errors that occur during
the creation of DebugFS nodes. The debugfs APIs have a IS_ERR() judge in
start_creating() which can handle it gracefully. So these checks are
unnecessary.
Fixes: 17f1de56df05 ("mt76: add common code shared between multiple chipsets")
Signed-off-by: Jinjie Ruan <[email protected]>
Suggested-by: Russell King (Oracle) <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
