[S] Change in flashrom[1.1.x]: pickit2_spi: Fix "dead" assignment

[Nico Huber (Code Review)]

Attention is currently required from: Elyes Haouas.

Hello Elyes Haouas,

I'd like you to do a code review.
Please visit

https://review.coreboot.org/c/flashrom/+/67846

to review the following change.

Change subject: pickit2_spi: Fix "dead" assignment
......................................................................

pickit2_spi: Fix "dead" assignment

We never read the first 'ret'. Let's check the first 'ret'
and exit if it failed.

Also, print the version only when the command succeeded.

Found-by: scan-build 7.0.1-8
Change-Id: I4aac5e1f3bd0604b079e1fdd9b7f09f1f4fc2d7f
Signed-off-by: Elyes HAOUAS 
Reviewed-on: https://review.coreboot.org/c/flashrom/+/34403
Tested-by: Nico Huber 
Reviewed-by: Nico Huber 
---
M pickit2_spi.c
1 file changed, 26 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/46/67846/1

diff --git a/pickit2_spi.c b/pickit2_spi.c
index 4354025..1d1f08c 100644
--- a/pickit2_spi.c
+++ b/pickit2_spi.c
@@ -119,14 +119,20 @@
    uint8_t command[CMD_LENGTH] = {CMD_GET_VERSION, CMD_END_OF_BUFFER};

ret = usb_interrupt_write(pickit2_handle, ENDPOINT_OUT, (char *)command, CMD_LENGTH, DFLT_TIMEOUT);
+
+	if (ret != CMD_LENGTH) {
+		msg_perr("Command Get Firmware Version failed!\n");
+		return 1;
+	}
+
    ret = usb_interrupt_read(pickit2_handle, ENDPOINT_IN, (char *)command, CMD_LENGTH, DFLT_TIMEOUT);

-	msg_pdbg("PICkit2 Firmware Version: %d.%d\n", (int)command[0], (int)command[1]);
    if (ret != CMD_LENGTH) {
    	msg_perr("Command Get Firmware Version failed (%s)!\n", usb_strerror());
    	return 1;
    }

+	msg_pdbg("PICkit2 Firmware Version: %d.%d\n", (int)command[0], (int)command[1]);
    return 0;
 }