If a USB transfer is started but not completed in one go, the wdata we
pass to continue_write_regv() will already be freed by the time we try
to use it again.
Only free() the wdata on error, or when the USB transfer is completed.
Closes: #180
The state was always AWAIT_FINGER and it was never used by any driver
(except for error checking). So remove it, in particular as a correct
state change will be done after activation anyway.
The only driver with code that actually did anything based on this was
the URU4000 driver. However, all it did was an explicit state change
execution. This is not necessary, as the state_change handler is called
anyway (i.e. we now only write the AWAIT_FINGER register once rather
than twice).
Manual changes plus:
@ init @
identifier driver_name;
identifier activate_func;
@@
struct fp_img_driver driver_name = {
...,
.activate = activate_func,
...,
};
@ remove_arg @
identifier dev;
identifier state;
identifier init.activate_func;
@@
activate_func (
struct fp_img_dev *dev
- , enum fp_imgdev_state state
)
{
<...
- if (state != IMGDEV_STATE_AWAIT_FINGER_ON) { ... }
...>
}
The driver was never ported to the new asynchronous model, meaning it
has been defunct since some time in 2008. Remove the driver, as
seemingly no one has complained about this and we have no proper way to
even verify a port is correct.
If users put their finger on the sensor between the bulge and
"un-bulge" area first and then swipe, the captured image would
be bad.
Skipping more frames can reduce the impact, so bump
ELAN_SKIP_LAST_FRAMES to 2.
Check for the mean calibration being outside of range to know whether we
require a recalibration. Continue with the usual checks if the
calibration value is within range.
The dimensions some sensors return is the maximum zero-based index
rather than the number of pixels. Assuming every sensor has an
even number of pixels is safe.
This commit fixes a hang in gnome-settings when trying to enroll a finger.
The same issue could be seen in the enroll example. Previously the enroll
example would hang on "deactivating" because at some point dev->is_active
is set to false and m_exit_start is never called.
Work-around SELinux AVC warnings caused by p11-kit (which is an NSS
dependency) trying to load the root user's p11-kit configs. We disable
this feature using the P11_KIT_NO_USER_CONFIG envvar.
See https://bugzilla.redhat.com/show_bug.cgi?id=1688583
‘img->key_number’ variable is originally from the device through bulk
endpoint of USB. The variable is immediately assigned to ‘buf[0]’ for
sending to control endpoint of the device. Here, integer overflow may
occur when the ‘img->key_number’ attempts to assign a value that is
outside of type range of ‘char’ to the ‘buf[0]’
libfprint/drivers/elan.c:351:4: warning: 2nd function call argument is an uninitialized value
dbg_buf(elandev->last_read, transfer->actual_length);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libfprint/drivers/elan.c:46:5: note: expanded from macro 'dbg_buf'
fp_dbg("%02x", buf[0]); \
^~~~~~~~~~~~~~~~~~~~~~
../../../../../../Projects/jhbuild/libfprint/libfprint/fpi-log.h:52:16: note: expanded from macro 'fp_dbg'
#define fp_dbg g_debug
^
libfprint/drivers/elan.c:351:4: warning: The left operand of '<<' is a garbage value
dbg_buf(elandev->last_read, transfer->actual_length);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libfprint/drivers/elan.c:48:27: note: expanded from macro 'dbg_buf'
fp_dbg("%04x", buf[0] << 8 | buf[1]); \
~~~~~~ ^
libfprint/drivers/elan.c:351:4: warning: The left operand of '<<' is a garbage value
dbg_buf(elandev->last_read, transfer->actual_length);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libfprint/drivers/elan.c:50:41: note: expanded from macro 'dbg_buf'
fp_dbg("%04x... (%d bytes)", buf[0] << 8 | buf[1], len)
~~~~~~ ^
By asserting if we have a zero line width.
libfprint/drivers/upeksonly.c:118:7: warning: Division by zero
mean /= (ctx->line_width / 2);
~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
We don't need to assign urudev if we only want the size of one of its
members.
libfprint/drivers/uru4000.c:554:20: warning: Value stored to 'urudev' during its initialization is never read
struct uru4k_dev *urudev = FP_INSTANCE_DATA(FP_DEV(dev));
^~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libfprint/drivers/elan.c:351:12: warning: format specifies type 'unsigned short' but the argument has type 'unsigned char' [-Wformat]
dbg_buf(elandev->last_read, transfer->actual_length);
~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libfprint/drivers/elan.c:46:21: note: expanded from macro 'dbg_buf'
fp_dbg("%02hx", buf[0]); \
~~~~~~~~~~~~~~~~^~~~~~~
include/glib-2.0/glib/gmessages.h:345:32: note: expanded from macro 'g_debug'
__VA_ARGS__)
^~~~~~~~~~~
libfprint/drivers/elan.c:351:12: warning: format specifies type 'unsigned short' but the argument has type 'int' [-Wformat]
dbg_buf(elandev->last_read, transfer->actual_length);
~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libfprint/drivers/elan.c:48:21: note: expanded from macro 'dbg_buf'
fp_dbg("%04hx", buf[0] << 8 | buf[1]); \
~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~
include/glib-2.0/glib/gmessages.h:345:32: note: expanded from macro 'g_debug'
__VA_ARGS__)
^~~~~~~~~~~
libfprint/drivers/elan.c:351:12: warning: format specifies type 'unsigned short' but the argument has type 'int' [-Wformat]
dbg_buf(elandev->last_read, transfer->actual_length);
~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libfprint/drivers/elan.c:50:35: note: expanded from macro 'dbg_buf'
fp_dbg("%04hx... (%d bytes)", buf[0] << 8 | buf[1], len)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
include/glib-2.0/glib/gmessages.h:345:32: note: expanded from macro 'g_debug'
__VA_ARGS__)
^~~~~~~~~~~
libfprint/drivers/elan.c:413:10: warning: format specifies type 'unsigned short' but the argument has type 'unsigned char' [-Wformat]
dbg_buf(cmd->cmd, 2);
~~~~~~~~^~~~~~~~~~~~
libfprint/drivers/elan.c:46:21: note: expanded from macro 'dbg_buf'
fp_dbg("%02hx", buf[0]); \
~~~~~~~~~~~~~~~~^~~~~~~
include/glib-2.0/glib/gmessages.h:345:32: note: expanded from macro 'g_debug'
__VA_ARGS__)
^~~~~~~~~~~
libfprint/drivers/elan.c:413:10: warning: format specifies type 'unsigned short' but the argument has type 'int' [-Wformat]
dbg_buf(cmd->cmd, 2);
~~~~~~~~^~~~~~~~~~~~
libfprint/drivers/elan.c:48:21: note: expanded from macro 'dbg_buf'
fp_dbg("%04hx", buf[0] << 8 | buf[1]); \
~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~
include/glib-2.0/glib/gmessages.h:345:32: note: expanded from macro 'g_debug'
__VA_ARGS__)
^~~~~~~~~~~
libfprint/drivers/elan.c:413:10: warning: format specifies type 'unsigned short' but the argument has type 'int' [-Wformat]
dbg_buf(cmd->cmd, 2);
~~~~~~~~^~~~~~~~~~~~
libfprint/drivers/elan.c:50:35: note: expanded from macro 'dbg_buf'
fp_dbg("%04hx... (%d bytes)", buf[0] << 8 | buf[1], len)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
include/glib-2.0/glib/gmessages.h:345:32: note: expanded from macro 'g_debug'
__VA_ARGS__)
^~~~~~~~~~~
libfprint/drivers/vfs101.c:854:6: warning: absolute value function 'abs' given an argument of type 'long' but has parameter of type 'int' which may cause truncation of value [-Wabsolute-value]
if (abs(count - VFS_IMG_BEST_CONTRAST) < abs(vdev->best_clevel - VFS_IMG_BEST_CONTRAST))
^
libfprint/drivers/vfs101.c:854:6: note: use function 'labs' instead
if (abs(count - VFS_IMG_BEST_CONTRAST) < abs(vdev->best_clevel - VFS_IMG_BEST_CONTRAST))
^~~
labs
