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s390/cio: fix measurement characteristics memleak

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Measurement characteristics are allocated during channel path
registration but not freed during deregistration. Fix this by
embedding these characteristics inside struct channel_path.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Sebastian Ott
2016-01-25 10:30:27 +01:00
committed by Martin Schwidefsky
parent d8f51227f3
commit 0d9bfe9123
3 changed files with 6 additions and 18 deletions
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6
drivers/s390/cio/chp.c
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@@ -139,11 +139,11 @@ static ssize_t chp_measurement_chars_read(struct file *filp,
device = container_of(kobj, struct device, kobj);
chp = to_channelpath(device);
if (!chp->cmg_chars)
if (chp->cmg == -1)
return 0;
return memory_read_from_buffer(buf, count, &off,
chp->cmg_chars, sizeof(struct cmg_chars));
return memory_read_from_buffer(buf, count, &off, &chp->cmg_chars,
sizeof(chp->cmg_chars));
}
static struct bin_attribute chp_measurement_chars_attr = {