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cmd/extension: avoid NULL pointer dereference

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extension_get_list() will return NULL if there is no extension device.
Check for this situation.

Addresses-Coverity-ID: 638557 - Null pointer dereferences (NULL_RETURNS)
Fixes: 2d12958ee7 ("boot: Remove legacy extension board support")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Acked-by: Kory Maincent <kory.maincent@bootlin.com>
This commit is contained in:
Heinrich Schuchardt
2025-11-16 12:41:53 +01:00
committed by Tom Rini
parent d49e48462b
commit 642a9e716e
1 changed files with 4 additions and 0 deletions
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4
cmd/extension_board.c
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@@ -99,6 +99,10 @@ static int do_extension_list(struct cmd_tbl *cmdtp, int flag,
int i = 0;
extension_list = extension_get_list();
if (!extension_list) {
printf("No extension device\n");
return CMD_RET_FAILURE;
}
if (!alist_get_ptr(extension_list, 0)) {
printf("No extension registered - Please run \"extension scan\"\n");
return CMD_RET_SUCCESS;