diff options
| author | Martin Habets <errandir_news@mph.eclipse.co.uk> | 2006-05-12 12:53:59 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2006-05-12 12:53:59 -0700 |
| commit | 586152560ae8df2a9babf1a8b667d7a145cb8208 (patch) | |
| tree | 18c02fc0987e4f42ea6ab212b01caebfda49be80 /drivers/sbus | |
| parent | 06a1be167ea77c436657587e26cd4d7d6401784c (diff) | |
[SPARC]: Fix warning on prom_getproperty in openprom.c
Signed-off-by: Martin Habets <errandir_news@mph.eclipse.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/sbus')
| -rw-r--r-- | drivers/sbus/char/openprom.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/sbus/char/openprom.c b/drivers/sbus/char/openprom.c index 383a95f34a0d..239e108b8ed1 100644 --- a/drivers/sbus/char/openprom.c +++ b/drivers/sbus/char/openprom.c @@ -392,13 +392,16 @@ static int openprom_bsd_ioctl(struct inode * inode, struct file * file, return -ENOMEM; } - prom_getproperty(op.op_nodeid, str, tmp, len); - - tmp[len] = '\0'; + cnt = prom_getproperty(op.op_nodeid, str, tmp, len); + if (cnt <= 0) { + error = -EINVAL; + } else { + tmp[len] = '\0'; - if (__copy_to_user(argp, &op, sizeof(op)) != 0 - || copy_to_user(op.op_buf, tmp, len) != 0) - error = -EFAULT; + if (__copy_to_user(argp, &op, sizeof(op)) != 0 || + copy_to_user(op.op_buf, tmp, len) != 0) + error = -EFAULT; + } kfree(tmp); kfree(str); |