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Commit 4ee185d1 authored by Rémi Denis-Courmont's avatar Rémi Denis-Courmont
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udev: fix signed overflow

parent 805cffa8
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Showing with 5 additions and 4 deletions
modules/services_discovery/udev.c
View file @ 4ee185d1
...@@ -137,11 +137,12 @@ struct services_discovery_sys_t ...@@ -137,11 +137,12 @@ struct services_discovery_sys_t
static int cmpdev (const void *a, const void *b) static int cmpdev (const void *a, const void *b)
{ {
const dev_t *da = a, *db = b; const dev_t *da = a, *db = b;
dev_t delta = *da - *db;
if (sizeof (delta) > sizeof (int)) if (*da > *db)
return delta ? (((signed)delta > 0) ? 1 : -1) : 0; return +1;
return (signed)delta; if (*da < *db)
return -1;
return 0;
} }
static void DestroyDevice (void *data) static void DestroyDevice (void *data)
......
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