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| author | Hans-Joachim Picht <hans@linux.vnet.ibm.com> | 2010-03-24 11:49:56 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2010-03-24 11:49:53 +0100 |
| commit | 7b26d82f5ea7de5667f87bb5ac6570111d7bff9f (patch) | |
| tree | e2bd9ad9c5a0084cc66ac64a12a36a5bb8ecd1d9 /drivers/s390/char/sclp_async.c | |
| parent | [S390] sclp: avoid 64 bit division (diff) | |
| download | linux-7b26d82f5ea7de5667f87bb5ac6570111d7bff9f.tar.xz linux-7b26d82f5ea7de5667f87bb5ac6570111d7bff9f.zip | |
[S390] fix broken proc interface for sclp_async
This patch now allows the use of the proc interface to either activate
or deactivate call home on panic.
e.g. echo 1 > /proc/sys/kernel/callhome
strict_strtoul() requires _either_'\n\0' _or_ '\0' termination.
This was missing and therefore the interface did not recognise valid input.
Signed-off-by: Hans-Joachim Picht <hans@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/char/sclp_async.c')
| -rw-r--r-- | drivers/s390/char/sclp_async.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/s390/char/sclp_async.c b/drivers/s390/char/sclp_async.c index 740fe405c395..f449c696e503 100644 --- a/drivers/s390/char/sclp_async.c +++ b/drivers/s390/char/sclp_async.c @@ -84,6 +84,7 @@ static int proc_handler_callhome(struct ctl_table *ctl, int write, rc = copy_from_user(buf, buffer, sizeof(buf)); if (rc != 0) return -EFAULT; + buf[len - 1] = '\0'; if (strict_strtoul(buf, 0, &val) != 0) return -EINVAL; if (val != 0 && val != 1) |