Axel Lin abd5a2fb39 IIO: industrialio-core: Checking NULL instead of IS_ERR for debugfs_create_dir()
If defined CONFIG_DEBUG_FS, debugfs_create_dir returns NULL on failure.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-08 16:04:11 -07:00
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