mtd: block2mtd: minor refactor to avoid hard coded constant

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211009060955.552636-2-troglobit@gmail.com

diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c
index c08721b..6c28717 100644 (file)
--- a/drivers/mtd/devices/block2mtd.c
+++ b/drivers/mtd/devices/block2mtd.c
@@ -31,6 +31,9 @@
 #include <linux/slab.h>
 #include <linux/major.h>
 
+/* Maximum number of comma-separated items in the 'block2mtd=' parameter */
+#define BLOCK2MTD_PARAM_MAX_COUNT 2
+
 /* Info for the block device */
 struct block2mtd_dev {
        struct list_head list;
@@ -381,7 +384,7 @@ static int block2mtd_setup2(const char *val)
        /* 80 for device, 12 for erase size, 80 for name, 8 for timeout */
        char buf[80 + 12 + 80 + 8];
        char *str = buf;
-       char *token[2];
+       char *token[BLOCK2MTD_PARAM_MAX_COUNT];
        char *name;
        size_t erase_size = PAGE_SIZE;
        unsigned long timeout = MTD_DEFAULT_TIMEOUT;
@@ -395,7 +398,7 @@ static int block2mtd_setup2(const char *val)
        strcpy(str, val);
        kill_final_newline(str);
 
-       for (i = 0; i < 2; i++)
+       for (i = 0; i < BLOCK2MTD_PARAM_MAX_COUNT; i++)
                token[i] = strsep(&str, ",");
 
        if (str) {