diff options
Diffstat (limited to 'drivers/acpi/custom_method.c')
| -rw-r--r-- | drivers/acpi/custom_method.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/acpi/custom_method.c b/drivers/acpi/custom_method.c index c68e72414a67..435bd0ffc8c0 100644 --- a/drivers/acpi/custom_method.c +++ b/drivers/acpi/custom_method.c @@ -48,8 +48,10 @@ static ssize_t cm_write(struct file *file, const char __user * user_buf, if ((*ppos > max_size) || (*ppos + count > max_size) || (*ppos + count < count) || - (count > uncopied_bytes)) + (count > uncopied_bytes)) { + kfree(buf); return -EINVAL; + } if (copy_from_user(buf + (*ppos), user_buf, count)) { kfree(buf); @@ -69,6 +71,7 @@ static ssize_t cm_write(struct file *file, const char __user * user_buf, add_taint(TAINT_OVERRIDDEN_ACPI_TABLE, LOCKDEP_NOW_UNRELIABLE); } + kfree(buf); return count; } |