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| author | David Herrmann <dh.herrmann@gmail.com> | 2013-05-05 23:13:09 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2013-06-03 11:07:06 +0200 |
| commit | 0d57eb8758c865a70dd05f7c6a857acd996167fa (patch) | |
| tree | bbd99a0f26f82e47c85582f0c7157e97c57aa3dc /drivers/hid/hid-wiimote-debug.c | |
| parent | 9f329741a6d7253f044677af00a999b47e85721e (diff) | |
| download | lwn-0d57eb8758c865a70dd05f7c6a857acd996167fa.tar.gz lwn-0d57eb8758c865a70dd05f7c6a857acd996167fa.zip | |
HID: wiimote: fix DRM debug-attr to correctly parse input
We need to correctly zero-terminate the input to parse it. Otherwise, we
always end up interpreting it as numbers.
Furthermore, we actually want hexadecimal numbers instead of decimal. As
it is a debugfs interface, we can change the API at any time.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-wiimote-debug.c')
| -rw-r--r-- | drivers/hid/hid-wiimote-debug.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/hid/hid-wiimote-debug.c b/drivers/hid/hid-wiimote-debug.c index 6e76a2c3b00a..c13fb5bd79e8 100644 --- a/drivers/hid/hid-wiimote-debug.c +++ b/drivers/hid/hid-wiimote-debug.c @@ -141,7 +141,7 @@ static ssize_t wiidebug_drm_write(struct file *f, const char __user *u, if (copy_from_user(buf, u, len)) return -EFAULT; - buf[15] = 0; + buf[len] = 0; for (i = 0; i < WIIPROTO_REQ_MAX; ++i) { if (!wiidebug_drmmap[i]) @@ -151,7 +151,7 @@ static ssize_t wiidebug_drm_write(struct file *f, const char __user *u, } if (i == WIIPROTO_REQ_MAX) - i = simple_strtoul(buf, NULL, 10); + i = simple_strtoul(buf, NULL, 16); spin_lock_irqsave(&dbg->wdata->state.lock, flags); dbg->wdata->state.flags &= ~WIIPROTO_FLAG_DRM_LOCKED; |