Change in flashrom[master]: ft2232_spi: Normalize error paths in ft2232_shutdown()

[Nico Huber (Code Review)]

Attention is currently required from: Alan Green, Anastasia Klimchuk.
Hello Alan Green, Anastasia Klimchuk,

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

https://review.coreboot.org/c/flashrom/+/55696

to review the following change.

Change subject: ft2232_spi: Normalize error paths in ft2232_shutdown()
......................................................................

ft2232_spi: Normalize error paths in ft2232_shutdown()

We missed to `free(spi_data)` on one path. It also seems odd to leak
the return code of a locally used library into our common infrastruc-
ture, so normalize all error paths to return 1.

Change-Id: I5158d06127a9a8934b083e48b69d29c4d5a11831
Signed-off-by: Nico Huber 
---
M ft2232_spi.c
1 file changed, 7 insertions(+), 5 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/96/55696/1

diff --git a/ft2232_spi.c b/ft2232_spi.c
index e546f6c..fbea0f9 100644
--- a/ft2232_spi.c
+++ b/ft2232_spi.c
@@ -170,10 +170,10 @@

static int ft2232_shutdown(void *data)
 {
-	int f;
    struct ft2232_data *spi_data = (struct ft2232_data *) data;
    struct ftdi_context *ftdic = &spi_data->ftdic_context;
    unsigned char buf[3];
+	int ret = 0;

msg_pdbg("Releasing I/Os\n");
    buf[0] = SET_BITS_LOW;
@@ -182,16 +182,18 @@
    if (send_buf(ftdic, buf, 3)) {
    	msg_perr("Unable to set pins back inputs: (%s)\n",
    	         ftdi_get_error_string(ftdic));
+		ret = 1;
    }

-	if ((f = ftdi_usb_close(ftdic)) < 0) {
-		msg_perr("Unable to close FTDI device: %d (%s)\n", f,
+	const int close_ret = ftdi_usb_close(ftdic);
+	if (close_ret < 0) {
+		msg_perr("Unable to close FTDI device: %d (%s)\n", close_ret,
    	         ftdi_get_error_string(ftdic));
-		return f;
+		ret = 1;
    }

free(spi_data);
-	return 0;
+	return ret;
 }

static bool ft2232_spi_command_fits(const struct spi_command *cmd, size_t buffer_size)