leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

cmd: spi: Judge the number of added parameters

Browse Source 
When only sspi is entered, help information can be printed.

Signed-off-by: chenzhipeng <chenzhipeng@eswincomputing.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
chenzhipeng 2022-12-06 17:24:38 +08:00 committed by Tom Rini
parent 33965c7e18
commit c40e021b83
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
cmd/spi.c
View File

@ -112,6 +112,9 @@ int do_spi(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
if ((flag & CMD_FLAG_REPEAT) == 0) if ((flag & CMD_FLAG_REPEAT) == 0)
{ {
if (argc < 2)
return CMD_RET_USAGE;
if (argc >= 2) { if (argc >= 2) {
mode = CONFIG_DEFAULT_SPI_MODE; mode = CONFIG_DEFAULT_SPI_MODE;
bus = dectoul(argv[1], &cp); bus = dectoul(argv[1], &cp);