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lib: Fix get_next_timeout_expiry

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If get_next_timeout_expiry() fails, and libusb_get_next_timeout()
has no timeouts or failed, fprint_timeout will not be set, and
we cannot compare it to libusb_timeout.

Exit early if both failed or have empty queues.
This commit is contained in:
Bastien Nocera
2018-10-23 16:24:14 +02:00
parent 9da69dfc36
commit 11b11a9d71
1 changed files with 1 additions and 1 deletions
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2
libfprint/fpi-poll.c
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@@ -381,7 +381,7 @@ API_EXPORTED int fp_get_next_timeout(struct timeval *tv)
/* if we have no pending timeouts and the same is true for libusb, /* if we have no pending timeouts and the same is true for libusb,
* indicate that we have no pending timouts */ * indicate that we have no pending timouts */
if (r_fprint == 0 && r_libusb == 0) if (r_fprint <= 0 && r_libusb <= 0)
return 0; return 0;
/* if fprint have no pending timeouts return libusb timeout */ /* if fprint have no pending timeouts return libusb timeout */