[S] Change in flashrom[master]: buspirate_spi.c: Move variable `dev` into parameter struct

[Felix Singer (Code Review)]

Felix Singer has uploaded this change for review. ( https://review.coreboot.org/c/flashrom/+/67891 )

Change subject: buspirate_spi.c: Move variable `dev` into parameter struct
......................................................................

buspirate_spi.c: Move variable `dev` into parameter struct

Signed-off-by: Felix Singer 
Change-Id: I5a791f1d9204982d7972eed85ccf8eb10ce02b78
---
M buspirate_spi.c
1 file changed, 23 insertions(+), 9 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/91/67891/1

diff --git a/buspirate_spi.c b/buspirate_spi.c
index cf84c9c..2c551c4 100644
--- a/buspirate_spi.c
+++ b/buspirate_spi.c
@@ -315,10 +315,13 @@
  */
 #define BP_DIVISOR(baud) ((4000000/(baud)) - 1)

+struct buspirate_spi_parameters {
+	char *dev;
+};
+
 static int buspirate_spi_init(const struct programmer_cfg *cfg)
 {
    char *tmp;
-	char *dev;
    int i;
    int cnt;
    unsigned int fw_version_major = 0;
@@ -332,13 +335,14 @@
    bool psu = false;
    unsigned char *bp_commbuf;
    int bp_commbufsize;
+	struct buspirate_spi_parameters parameters = { 0 };

-	dev = extract_programmer_param_str(cfg, "dev");
-	if (dev && !strlen(dev)) {
-		free(dev);
-		dev = NULL;
+	parameters.dev = extract_programmer_param_str(cfg, "dev");
+	if (parameters.dev && !strlen(parameters.dev)) {
+		free(parameters.dev);
+		parameters.dev = NULL;
    }
-	if (!dev) {
+	if (!parameters.dev) {
    	msg_perr("No serial device given. Use flashrom -p buspirate_spi:dev=/dev/ttyUSB0\n");
    	return 1;
    }
@@ -401,13 +405,13 @@
    bp_commbuf = malloc(DEFAULT_BUFSIZE);
    if (!bp_commbuf) {
    	msg_perr("Out of memory!\n");
-		free(dev);
+		free(parameters.dev);
    	return ERROR_OOM;
    }
    bp_commbufsize = DEFAULT_BUFSIZE;

-	ret = buspirate_serialport_setup(dev);
-	free(dev);
+	ret = buspirate_serialport_setup(parameters.dev);
+	free(parameters.dev);
    if (ret) {
    	free(bp_commbuf);
    	return ret;