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| author | Caleb Connolly <caleb.connolly@linaro.org> | 2024-03-18 23:16:36 +0000 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2024-04-10 09:26:00 -0600 |
| commit | ae8e1d5aa46034963bca28fb07dac76970f718fe (patch) | |
| tree | 69d3c78f88f5ec02b4678a76f79cca33db0b0e4f | |
| parent | 4b36f01201bfb62aba2669230436e5012dc60533 (diff) | |
| download | u-boot-ae8e1d5aa46034963bca28fb07dac76970f718fe.zip u-boot-ae8e1d5aa46034963bca28fb07dac76970f718fe.tar.gz u-boot-ae8e1d5aa46034963bca28fb07dac76970f718fe.tar.bz2 | |
cmd: sysboot: null check filename
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>
| -rw-r--r-- | cmd/sysboot.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/cmd/sysboot.c b/cmd/sysboot.c index 63a7806..d14c570 100644 --- a/cmd/sysboot.c +++ b/cmd/sysboot.c @@ -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); |