From 1264b4050c6f635cc237b5821f924817457ce50c Mon Sep 17 00:00:00 2001
From: Wolfgang Denk <wd@pollux.denx.de>
Date: Sun, 12 Mar 2006 02:20:55 +0100
Subject: Avoid dereferencing NULL in find_cmd() if no valid commands were
 found Patch by Andrew Dyer, 13 Jun 2005

---
 common/main.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

(limited to 'common')

diff --git a/common/main.c b/common/main.c
index f042f3a..445cb18 100644
--- a/common/main.c
+++ b/common/main.c
@@ -919,7 +919,10 @@ int run_command (const char *cmd, int flag)
 		process_macros (token, finaltoken);
 
 		/* Extract arguments */
-		argc = parse_line (finaltoken, argv);
+		if ((argc = parse_line (finaltoken, argv)) == 0) {
+			rc = -1;	/* no command at all */
+			continue;
+		}
 
 		/* Look up command in command table */
 		if ((cmdtp = find_cmd(argv[0])) == NULL) {
@@ -945,9 +948,9 @@ int run_command (const char *cmd, int flag)
 				puts ("'bootd' recursion detected\n");
 				rc = -1;
 				continue;
-			}
-			else
+			} else {
 				flag |= CMD_FLAG_BOOTD;
+			}
 		}
 #endif	/* CFG_CMD_BOOTD */
 
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