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ANDROID: dm: fix dm_substitute_devices()

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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>
This commit is contained in:
Jeremy Compostella 2016-05-02 17:29:28 +02:00 • committed by Badhri Jagan Sridharan
parent 5a77db7839
commit 26cab56d9a
1 changed files with 2 additions and 1 deletions
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3
init/do_mounts_dm.c
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@ -176,7 +176,8 @@ static void __init dm_substitute_devices(char *str, size_t str_len)
continue; continue;
/* Temporarily terminate with a nul */ /* Temporarily terminate with a nul */
candidate_end--; if (*candidate_end)
candidate_end--;
old_char = *candidate_end; old_char = *candidate_end;
*candidate_end = '\0'; *candidate_end = '\0';