fabrics: add missing default context assignment

The config line parser wants to access the default fabrics configuration
for every connection attempt. Thus assign the pointer to the helper
struct to avoid NULL pointer access.

Reported-by: Martin George <[email protected]>
Signed-off-by: Daniel Wagner <[email protected]>

Author: igaw

fabrics.c

@@ -172,7 +172,7 @@ static int setup_common_context(struct nvmf_context *fctx,
 		struct fabric_args *fa);
 
 struct cb_fabrics_data {
-	struct nvme_fabrics_config *defcfg;
+	struct nvme_fabrics_config *cfg;
 	nvme_print_flags_t flags;
 	char *raw;
 	char **argv;
@@ -281,7 +281,7 @@ static int cb_parser_next_line(struct nvmf_context *fctx, void *user_data)
 		  OPT_FLAG("persistent",   'p', &persistent, "persistent discovery connection"),
 		  OPT_FLAG("force",          0, &force,      "Force persistent discovery controller creation"));
 
-	memcpy(&cfg, cfd->defcfg, sizeof(cfg));
+	memcpy(&cfg, cfd->cfg, sizeof(cfg));
 next:
 	if (fgets(line, sizeof(line), cfd->f) == NULL)
 		return -EOF;
@@ -549,6 +549,7 @@ int fabrics_discovery(const char *desc, int argc, char **argv, bool connect)
 	}
 
 	struct cb_fabrics_data dld = {
+		.cfg = &cfg,
 		.flags = flags,
 		.raw = raw,
 	};