[PATCH u-boot-mvebu v3 16/18] cmd: rng: Print "Abort" on -EINTR

Marek Behún
2024-03-27T16:26:55Z

In the rng command, print
Abort
instead of
Reading RNG failed
if the error number is -EINTR, which can happen if the user pressed
CTRL-C.

Signed-off-by: Marek Behún <kabel@kernel.org>
---
cmd/rng.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/cmd/rng.c b/cmd/rng.c
index 52f722c7af..48ba67061b 100644
--- a/cmd/rng.c
+++ b/cmd/rng.c
@@ -17,7 +17,7 @@ static int do_rng(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
u8 buf[64];
int devnum;
struct udevice *dev;
- int ret = CMD_RET_SUCCESS;
+ int ret = CMD_RET_SUCCESS, err;

switch (argc) {
case 1:
@@ -46,8 +46,9 @@ static int do_rng(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])

n = min(n, sizeof(buf));

- if (dm_rng_read(dev, buf, n)) {
- printf("Reading RNG failed\n");
+ err = dm_rng_read(dev, buf, n);
+ if (err) {
+ puts(err == -EINTR ? "Abort\n" : "Reading RNG failed\n");
ret = CMD_RET_FAILURE;
} else {
print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, buf, n);
--
2.43.2