spi25.c: Retype appropriate variables with bool

Use the bool type instead of an integer for appropriate variables, since
this represents their purpose much better.

Signed-off-by: Felix Singer <felixsinger@posteo.net>
Change-Id: Icd7e6478848c6f72817da16a5350d450bcc0bb5d
Reviewed-on: https://review.coreboot.org/c/flashrom/+/66890
Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
---
M spi25.c
1 file changed, 22 insertions(+), 5 deletions(-)

diff --git a/spi25.c b/spi25.c
index 4454106..6d160eb 100644
--- a/spi25.c
+++ b/spi25.c
@@ -37,7 +37,7 @@
 };
 
 static struct {
-	int is_cached;
+	bool is_cached;
 	unsigned char bytes[4];		/* enough to hold largest ID type */
 } id_cache[NUM_ID_TYPES];
 
@@ -167,7 +167,7 @@
 			msg_cinfo("%d byte RDID not supported on this SPI controller\n", bytes);
 		if (ret)
 			return 0;
-		id_cache[idty].is_cached = 1;
+		id_cache[idty].is_cached = true;
 	}
 
 	rdid_get_ids(id_cache[idty].bytes, bytes, &id1, &id2);
@@ -191,7 +191,7 @@
 	if (!id_cache[REMS].is_cached) {
 		if (spi_rems(flash, id_cache[REMS].bytes))
 			return 0;
-		id_cache[REMS].is_cached = 1;
+		id_cache[REMS].is_cached = true;
 	}
 
 	id1 = id_cache[REMS].bytes[0];
@@ -247,7 +247,7 @@
 	if (!id_cache[RES2].is_cached) {
 		if (spi_res(flash, id_cache[RES2].bytes, 2))
 			return 0;
-		id_cache[RES2].is_cached = 1;
+		id_cache[RES2].is_cached = true;
 	}
 
 	id1 = id_cache[RES2].bytes[0];
@@ -267,7 +267,7 @@
 	if (!id_cache[RES3].is_cached) {
 		if (spi_res(flash, id_cache[RES3].bytes, 3))
 			return 0;
-		id_cache[RES3].is_cached = 1;
+		id_cache[RES3].is_cached = true;
 	}
 
 	id1 = (id_cache[RES3].bytes[0] << 8) | id_cache[RES3].bytes[1];

