X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Flibsystemd%2Fsd-bus%2Fbus-track.c;h=e21959d01d00f871fc182fd5bb6dceb22e6eee11;hb=d2e7b05f248a03dc528f4a270dac2ac3ff3e605a;hp=fd368e4368638d89bf62545311a44057aa7753cb;hpb=4d46396131aa30ede598eb35c3710784745995b4;p=elogind.git

diff --git a/src/libsystemd/sd-bus/bus-track.c b/src/libsystemd/sd-bus/bus-track.c
index fd368e436..e21959d01 100644
--- a/src/libsystemd/sd-bus/bus-track.c
+++ b/src/libsystemd/sd-bus/bus-track.c
@@ -51,7 +51,7 @@ struct sd_bus_track {
         ({                                                              \
                 char *_x;                                               \
                 size_t _l = strlen(name);                               \
-                _x = alloca(sizeof(MATCH_PREFIX)-1+_l+sizeof(MATCH_SUFFIX)); \
+                _x = alloca(strlen(MATCH_PREFIX)+_l+strlen(MATCH_SUFFIX)+1); \
                 strcpy(stpcpy(stpcpy(_x, MATCH_PREFIX), name), MATCH_SUFFIX); \
                 _x;                                                     \
         })