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-rw-r--r--lib/libmtd.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/lib/libmtd.c b/lib/libmtd.c
index bf6d71f..1717468 100644
--- a/lib/libmtd.c
+++ b/lib/libmtd.c
@@ -939,7 +939,7 @@ static uint8_t patterns[] = {0xa5, 0x5a, 0x0};
* @patt: the pattern to check
* @size: buffer size in bytes
*
- * This function returns %1 in there are only @patt bytes in @buf, and %0 if
+ * This function returns %0 if there are only @patt bytes in @buf, and %-1 if
* something else was also found.
*/
static int check_pattern(const void *buf, uint8_t patt, int size)
@@ -948,8 +948,8 @@ static int check_pattern(const void *buf, uint8_t patt, int size)
for (i = 0; i < size; i++)
if (((const uint8_t *)buf)[i] != patt)
- return 0;
- return 1;
+ return -1;
+ return 0;
}
int mtd_torture(libmtd_t desc, const struct mtd_dev_info *mtd, int fd, int eb)
@@ -973,7 +973,7 @@ int mtd_torture(libmtd_t desc, const struct mtd_dev_info *mtd, int fd, int eb)
goto out;
err = check_pattern(buf, 0xFF, mtd->eb_size);
- if (err == 0) {
+ if (err) {
errmsg("erased PEB %d, but a non-0xFF byte found", eb);
errno = EIO;
goto out;
@@ -992,7 +992,7 @@ int mtd_torture(libmtd_t desc, const struct mtd_dev_info *mtd, int fd, int eb)
goto out;
err = check_pattern(buf, patterns[i], mtd->eb_size);
- if (err == 0) {
+ if (err) {
errmsg("pattern %x checking failed for PEB %d",
patterns[i], eb);
errno = EIO;
@@ -1005,7 +1005,7 @@ int mtd_torture(libmtd_t desc, const struct mtd_dev_info *mtd, int fd, int eb)
out:
free(buf);
- return -1;
+ return err;
}
int mtd_is_bad(const struct mtd_dev_info *mtd, int fd, int eb)