diff options
| author | Brian Norris <computersforpeace@gmail.com> | 2012-02-08 13:26:20 -0800 |
|---|---|---|
| committer | Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2012-02-29 09:19:17 +0200 |
| commit | c3e2250260f9ab7846cea5ae974ddb7379a8fef6 (patch) | |
| tree | d927dab42854f185a97e3c5c86e3d69b2d439346 /lib/libmtd.c | |
| parent | 71c76e74661492b4f68f670514866cfc85f47089 (diff) | |
libmtd: perform device checking first
If we don't check for the MTD before calling `legacy_get_dev_info1', we may
get errors like:
libmtd: MTD subsystem is old and does not support sysfs, so MTD character device nodes have to exist
libmtd: error!: "/dev/mtd2" is not a character device
mtdinfo: error!: libmtd failed get MTD device 2 information
error 22 (Invalid argument)
So reverse the order of these two checks.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Diffstat (limited to 'lib/libmtd.c')
| -rw-r--r-- | lib/libmtd.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/lib/libmtd.c b/lib/libmtd.c index 501f3f1..c4836df 100644 --- a/lib/libmtd.c +++ b/lib/libmtd.c @@ -735,12 +735,11 @@ int mtd_get_dev_info1(libmtd_t desc, int mtd_num, struct mtd_dev_info *mtd) memset(mtd, 0, sizeof(struct mtd_dev_info)); mtd->mtd_num = mtd_num; - if (!lib->sysfs_supported) - return legacy_get_dev_info1(mtd_num, mtd); - else if (!mtd_dev_present(desc, mtd_num)) { + if (!mtd_dev_present(desc, mtd_num)) { errno = ENODEV; return -1; - } + } else if (!lib->sysfs_supported) + return legacy_get_dev_info1(mtd_num, mtd); if (dev_get_major(lib, mtd_num, &mtd->major, &mtd->minor)) return -1; |