tree: Skip invalid pointer when scanning topology

dwsuse · dwsuse · commit 7d14b6dc02c6 · 2022-01-14T17:13:16.000+01:00
Do not try to dereference a NULL pointer. Just ignore it.

Signed-off-by: Daniel Wagner &lt;dwagner@suse.de&gt;
diff --git a/src/nvme/tree.c b/src/nvme/tree.c
@@ -86,6 +86,7 @@ static int nvme_scan_topology(struct nvme_root *r, nvme_scan_filter_t f)
 		if (!c) {
 			nvme_msg(LOG_DEBUG, "failed to scan ctrl %s: %s\n",
 				 ctrls[i]->d_name, strerror(errno));
+			continue;
 		}
 		if ((f) && !f(c->s)) {
 			nvme_free_ctrl(c);

Original file line number	Diff line number	Diff line change
`@@ -86,6 +86,7 @@ static int nvme_scan_topology(struct nvme_root *r, nvme_scan_filter_t f)`
`86`	`86`	`if (!c) {`
`87`	`87`	`nvme_msg(LOG_DEBUG, "failed to scan ctrl %s: %s\n",`
`88`	`88`	`ctrls[i]->d_name, strerror(errno));`
	`89`	`+ continue;`
`89`	`90`	`}`
`90`	`91`	`if ((f) && !f(c->s)) {`
`91`	`92`	`nvme_free_ctrl(c);`