diff options
author | Jeremy Compostella <jeremy.compostella@intel.com> | 2016-05-02 17:29:28 +0200 |
---|---|---|
committer | Amit Pundir <amit.pundir@linaro.org> | 2016-05-19 12:51:54 +0530 |
commit | cf520f9d537dcaf09e55c1812df0f2e76f800eac (patch) | |
tree | 960b11fc6c5941a80735f06b6655b34617c5a306 /init | |
parent | 737aeb64c5c789dbae10e293217ebf64b4c77eca (diff) |
dm: fix dm_substitute_devices()
When candidate is the last parameter, candidate_end points to the '\0'
character and not the DM_FIELD_SEP character. In such a situation, we
should not move the candidate_end pointer one character backward.
Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
Diffstat (limited to 'init')
-rw-r--r-- | init/do_mounts_dm.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/init/do_mounts_dm.c b/init/do_mounts_dm.c index f521bc5ae248..ecda58df9a19 100644 --- a/init/do_mounts_dm.c +++ b/init/do_mounts_dm.c @@ -176,7 +176,8 @@ static void __init dm_substitute_devices(char *str, size_t str_len) continue; /* Temporarily terminate with a nul */ - candidate_end--; + if (*candidate_end) + candidate_end--; old_char = *candidate_end; *candidate_end = '\0'; |