gprs: Fix invalid string comparison

The default context created when provisioning fails is simply a context
with an empty APN

1 files changed, 1 insertions, 1 deletions

diff --git a/src/gprs.c b/src/gprs.c
index 30122695..8b61cc34 100644
--- a/src/gprs.c
+++ b/src/gprs.c
@@ -1888,7 +1888,7 @@ static struct pri_context *find_usable_context(struct ofono_gprs *gprs,
 	for (l = gprs->contexts; l; l = l->next) {
 		pri_ctx = l->data;
 
-		if (pri_ctx->context.apn == NULL)
+		if (pri_ctx->context.apn[0] == '\0')
 			return pri_ctx;
 	}