A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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s390/cio: fix memleak in channel measurement

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The measurement block for the extended measurement data is not freed when
switching off per device measurement. Free the measurement block after HW
stopped accessing it.

Signed-off-by: Sebastian Ott <[email protected]>
Reviewed-by: Martin Schwidefsky <[email protected]>
Reviewed-by: Cornelia Huck <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
This commit is contained in:
Sebastian Ott 2015-09-07 19:52:31 +02:00 • committed by Martin Schwidefsky
commit a5e9ca573b
1 changed files with 3 additions and 1 deletions
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4
drivers/s390/cio/cmf.c
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@ -876,8 +876,10 @@ static void free_cmbe(struct ccw_device *cdev)
spin_lock_irq(cdev->ccwlock);
cmb_data = cdev->private->cmb;
cdev->private->cmb = NULL;
if (cmb_data)
if (cmb_data) {
kfree(cmb_data->last_block);
kfree(cmb_data->hw_block);
}
kfree(cmb_data);
/* deactivate global measurement if this is the last channel */