tree 55b301555c75a43fd905c4cdf5af175c1e0d29bb
parent 156171c71a0dc4bce12b4408bb1591f8fe32dc1a
author Gerald Schaefer <gerald.schaefer@de.ibm.com> 1258123431 +0100
committer Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> 1258123503 +0100

[S390] monreader: fix use after free bug with suspend/resume

The monreader device driver doesn't set dev->driver_data to NULL after
freeing the corresponding data structure. This leads to a use after
free bug in the freeze/thaw suspend/resume functions after the device
has been opened and closed once. Fix this by clearing dev->driver_data
in the close() function.

Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>