staging: comedi: fix clean-up of comedi_class in comedi_init()

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commit a9332e9ad0 upstream.

There is a clean-up bug in the core comedi module initialization
functions, `comedi_init()`.  If the `comedi_num_legacy_minors` module
parameter is non-zero (and valid), it creates that many "legacy" devices
and registers them in SysFS.  A failure causes the function to clean up
and return an error.  Unfortunately, it fails to destroy the "comedi"
class that was created earlier.  Fix it by adding a call to
`class_destroy(comedi_class)` at the appropriate place in the clean-up
sequence.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Ian Abbott 2017-06-16 19:35:34 +01:00 • committed by Greg Kroah-Hartman

parent 80c965cbd2

commit 090661e407

1 changed files with 1 additions and 0 deletions

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drivers/staging/comedi/comedi_fops.c

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