diff options
| -rw-r--r-- | linux_mtd.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/linux_mtd.c b/linux_mtd.c index e65f093c0..ae8bef2fe 100644 --- a/linux_mtd.c +++ b/linux_mtd.c @@ -376,6 +376,24 @@ int linux_mtd_init(void) } } + /* + * If user specified the MTD device number then error out if it doesn't + * appear to exist. Otherwise assume the error is benign and print a + * debug message. Bail out in either case. + */ + char sysfs_path[32]; + if (snprintf(sysfs_path, sizeof(sysfs_path), "%s/mtd%d", LINUX_MTD_SYSFS_ROOT, dev_num) < 0) + goto linux_mtd_init_exit; + + struct stat s; + if (stat(sysfs_path, &s) < 0) { + if (param) + msg_perr("%s does not exist\n", sysfs_path); + else + msg_pdbg("%s does not exist\n", sysfs_path); + goto linux_mtd_init_exit; + } + if (linux_mtd_setup(dev_num)) goto linux_mtd_init_exit; |