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uru4000: fix cancelling of imaging from error callback

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Call error callback before resetting img_transfer to NULL. This
variable is internally used to detect if we are still in imaging
loop and the call to execute_state_change() needs to be postponed.
Since this is the final thing imaging_complete() we can't reset
img_transfer until just before this call.

https://bugs.freedesktop.org/show_bug.cgi?id=57829
This commit is contained in:
Timo Teräs 2012-12-03 09:51:27 +02:00 committed by Bastien Nocera
parent 7e1646c382
commit 8a87ba448c
1 changed files with 6 additions and 3 deletions
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9
libfprint/drivers/uru4000.c
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@ -789,15 +789,18 @@ static void imaging_complete(struct fpi_ssm *ssm)
int r = ssm->error;
fpi_ssm_free(ssm);
/* Report error before exiting imaging loop - the error handler
* can request state change, which needs to be postponed to end of
* this function. */
if (r)
fpi_imgdev_session_error(dev, r);
g_free(urudev->img_data);
urudev->img_data = NULL;
libusb_free_transfer(urudev->img_transfer);
urudev->img_transfer = NULL;
if (r)
fpi_imgdev_session_error(dev, r);
r = execute_state_change(dev);
if (r)
fpi_imgdev_session_error(dev, r);