diff options
| author | Brian Norris <computersforpeace@gmail.com> | 2012-02-09 10:13:30 -0800 |
|---|---|---|
| committer | Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2012-02-14 11:00:12 +0200 |
| commit | 6571ef822aa7d782a8168d39a27fa3e65a3032be (patch) | |
| tree | 274560723694736b3f0d13fddd77cc5a20537b11 /lib | |
| parent | eded3cd0a52252f677ceacd1fbcae13be3d55e8f (diff) | |
libmtd: fix segmentation fault on lib->mtd
Legacy systems do not initialize lib->mtd, so we shouldn't perform
strlen(lib->mtd); this produces a segmentation fault. As this code isn't
used in the legacy codepath, we can just move it down to an 'else' branch.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libmtd.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/libmtd.c b/lib/libmtd.c index ecf182f..f0d40a0 100644 --- a/lib/libmtd.c +++ b/lib/libmtd.c @@ -644,13 +644,15 @@ void libmtd_close(libmtd_t desc) int mtd_dev_present(libmtd_t desc, int mtd_num) { struct stat st; struct libmtd *lib = (struct libmtd *)desc; - char file[strlen(lib->mtd) + 10]; if (!lib->sysfs_supported) return legacy_dev_present(mtd_num); + else { + char file[strlen(lib->mtd) + 10]; - sprintf(file, lib->mtd, mtd_num); - return !stat(file, &st); + sprintf(file, lib->mtd, mtd_num); + return !stat(file, &st); + } } int mtd_get_info(libmtd_t desc, struct mtd_info *info) |