netdev - [PATCH] ctrl: Add check for result rtnl_dump

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Date: Sun, 18 Feb 2024 22:43:09 +0300
From: Maks Mishin <maks.mishinfz@...il.com>
To: Stephen Hemminger <stephen@...workplumber.org>
Cc: Maks Mishin <maks.mishinFZ@...il.com>,
	netdev@...r.kernel.org
Subject: [PATCH] ctrl: Add check for result rtnl_dump_filter()

Added check for result of rtnl_dump_filter() function
for catch errors linked with dump.
Found by RASU JSC.

Signed-off-by: Maks Mishin <maks.mishinFZ@...il.com>
---
 genl/ctrl.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/genl/ctrl.c b/genl/ctrl.c
index aff922a4..467a2830 100644
--- a/genl/ctrl.c
+++ b/genl/ctrl.c
@@ -313,7 +313,10 @@ static int ctrl_list(int cmd, int argc, char **argv)
 			goto ctrl_done;
 		}
 
-		rtnl_dump_filter(&rth, print_ctrl2, stdout);
+		if (rtnl_dump_filter(&rth, print_ctrl2, stdout) < 0) {
+			fprintf(stderr, "Dump terminated\n");
+			exit(1);
+		}
 
 	}
 
-- 
2.30.2