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cmd: sysboot: null check filename

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Currently if ${bootfile} is unset and sysboot is invoked with no
filename specified then U-Boot will crash will a null-pointer
dereference. Add the missing check and a matching error print.

Fixes: 993c912d304d ("cmd: sysboot: Create a sysboot command dedicated file")
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
This commit is contained in:
Caleb Connolly 2024-03-18 23:16:36 +00:00 committed by Tom Rini
parent 4b36f01201
commit ae8e1d5aa4
1 changed files with 4 additions and 0 deletions
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4
cmd/sysboot.c
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@ -77,6 +77,10 @@ static int do_sysboot(struct cmd_tbl *cmdtp, int flag, int argc,
if (argc < 6) {
filename = env_get("bootfile");
if (!filename) {
printf("Specify a filename or set the ${bootfile} environment variable\n");
return 1;
}
} else {
filename = argv[5];
env_set("bootfile", filename);