gsm/gsm48_ie: Fix frequency list decoding

Fix-by: Andreas.Eversberg <jolly@eversberg.eu>
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>

diff --git a/src/gsm/gsm48_ie.c b/src/gsm/gsm48_ie.c
index efcf281..863e636 100644 (file)
--- a/src/gsm/gsm48_ie.c
+++ b/src/gsm/gsm48_ie.c
@@ -745,7 +745,7 @@ int gsm48_decode_freq_list(struct gsm_sysinfo_freq *f, uint8_t *cd,
                if (w[4])
                        f[((w[1] - 512 + ((w[2] - 256 + w[4] - 1) % 511)) % 1023) + 1].mask |= frqt;
                if (w[5])
-                       f[((w[1]       + ((w[3] - 256 - w[5] - 1) % 511)) % 1023) + 1].mask |= frqt;
+                       f[((w[1]       + ((w[3] - 256 + w[5] - 1) % 511)) % 1023) + 1].mask |= frqt;
                if (w[6])
                        f[((w[1] - 512 + ((w[2]       + w[6] - 1) % 511)) % 1023) + 1].mask |= frqt;
                if (w[7])