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poll: Fix fp_get_pollfds retval type 

fp_get_pollfds() is supposed to return a negative value on failure, but
size_t is an unsigned integer. Use ssize_t instead.
This commit is contained in:
Bastien Nocera 2018-06-26 14:52:26 +02:00
parent bb4d888661
commit 056ea541dd
2 changed files with 3 additions and 3 deletions
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2
libfprint/fprint.h
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@ -314,7 +314,7 @@ struct fp_pollfd {
int fp_handle_events_timeout(struct timeval *timeout);
int fp_handle_events(void);
size_t fp_get_pollfds(struct fp_pollfd **pollfds);
ssize_t fp_get_pollfds(struct fp_pollfd **pollfds);
int fp_get_next_timeout(struct timeval *tv);
/**

4
libfprint/poll.c
View File

@ -313,12 +313,12 @@ API_EXPORTED int fp_get_next_timeout(struct timeval *tv)
*
* Returns: the number of pollfds in the resultant list, or negative on error.
*/
API_EXPORTED size_t fp_get_pollfds(struct fp_pollfd **pollfds)
API_EXPORTED ssize_t fp_get_pollfds(struct fp_pollfd **pollfds)
{
const struct libusb_pollfd **usbfds;
const struct libusb_pollfd *usbfd;
struct fp_pollfd *ret;
size_t cnt = 0;
ssize_t cnt = 0;
size_t i = 0;
usbfds = libusb_get_pollfds(fpi_usb_ctx);