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print: Fix match error propagation

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The FPI_MATCH_ERROR constant was set to 0, however it is propagated to
the task completion using g_task_propagate_int. As g_task_propagate_int
will always return -1 on error, we either need to add an explicit -1
check or we just need to match the semantics.

Change the constant to -1, also rearange FP_MATCH_SUCCESS so that it
does not end up being 0.
This commit is contained in:
Benjamin Berg 2019-12-05 10:53:22 +01:00 committed by Marco Trevisan
parent f404a69b73
commit 6209b22e3b
1 changed files with 3 additions and 3 deletions
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6
libfprint/fpi-print.h
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@ -21,13 +21,13 @@ typedef enum {
/**
* FpiMatchResult:
* @FPI_MATCH_ERROR: An error occured during matching
* @FPI_MATCH_SUCCESS: The prints matched
* @FPI_MATCH_FAIL: The prints did not match
* @FPI_MATCH_SUCCESS: The prints matched
*/
typedef enum {
FPI_MATCH_ERROR = 0,
FPI_MATCH_SUCCESS,
FPI_MATCH_ERROR = -1, /* -1 for g_task_propagate_int */
FPI_MATCH_FAIL,
FPI_MATCH_SUCCESS,
} FpiMatchResult;
void fpi_print_add_print (FpPrint *print,