cxgbe(4): dump_devlog should never fail silently.

Do the same thing as dump_cimla and log a warning on failure.

Sponsored by:	Chelsio Communications

(cherry picked from commit 9282f04ff0ee89cc4064e510f7fa505cfc890bf0)

diff --git a/sys/dev/cxgbe/t4_main.c b/sys/dev/cxgbe/t4_main.c
index a9549abb48bb182003928409af249aa77ac8a4e5..2db23d218366c16a815213a076ce7466811366c8 100644 (file)
--- a/sys/dev/cxgbe/t4_main.c
+++ b/sys/dev/cxgbe/t4_main.c
@@ -9500,8 +9500,11 @@ dump_devlog(struct adapter *sc)
        int rc;
        struct sbuf sb;
 
-       if (sbuf_new(&sb, NULL, 4096, SBUF_AUTOEXTEND) != &sb)
+       if (sbuf_new(&sb, NULL, 4096, SBUF_AUTOEXTEND) != &sb) {
+               log(LOG_DEBUG, "%s: failed to generate devlog dump.\n",
+                   device_get_nameunit(sc->dev));
                return;
+       }
        rc = sbuf_devlog(sc, &sb, M_NOWAIT);
        if (rc == 0) {
                rc = sbuf_finish(&sb);