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-rw-r--r--common/command.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/common/command.c b/common/command.c
index 0020eacf5c..0b1a3fbf9b 100644
--- a/common/command.c
+++ b/common/command.c
@@ -108,6 +108,8 @@ cmd_tbl_t *find_cmd_tbl (const char *cmd, cmd_tbl_t *table, int table_len)
int len;
int n_found = 0;
+ if (!cmd)
+ return NULL;
/*
* Some commands allow length modifiers (like "cp.b");
* compare command name only until first dot.
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