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| author | Cornelia Huck <cornelia.huck@de.ibm.com> | 2008-04-30 13:38:33 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-04-30 13:38:43 +0200 |
| commit | 2f972202315cf71fd60e890ebbed7d5bcf620ba4 (patch) | |
| tree | 80e43d5bacb7b85417168bc257369d3642cc196c /drivers/s390/cio/css.c | |
| parent | 0ff5ce7f30b45cc2014cec465c0e96c16877116e (diff) | |
| download | kernel-crypto-2f972202315cf71fd60e890ebbed7d5bcf620ba4.tar.gz kernel-crypto-2f972202315cf71fd60e890ebbed7d5bcf620ba4.tar.xz kernel-crypto-2f972202315cf71fd60e890ebbed7d5bcf620ba4.zip | |
[S390] cio: Use strict_strtoul() for attributes.
Make parsing of attribute writes handle incorrect input better.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/css.c')
| -rw-r--r-- | drivers/s390/cio/css.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c index c1afab5f72d..595e327d2f7 100644 --- a/drivers/s390/cio/css.c +++ b/drivers/s390/cio/css.c @@ -705,13 +705,17 @@ css_cm_enable_store(struct device *dev, struct device_attribute *attr, { struct channel_subsystem *css = to_css(dev); int ret; + unsigned long val; + ret = strict_strtoul(buf, 16, &val); + if (ret) + return ret; mutex_lock(&css->mutex); - switch (buf[0]) { - case '0': + switch (val) { + case 0: ret = css->cm_enabled ? chsc_secm(css, 0) : 0; break; - case '1': + case 1: ret = css->cm_enabled ? 0 : chsc_secm(css, 1); break; default: |