From 88917b0f143e2eac468aea14338b4d9eddba389d Mon Sep 17 00:00:00 2001
From: Denis Vlasenko <vda.linux@googlemail.com>
Date: Tue, 20 May 2008 20:39:38 +0000
Subject: replace "if (p) free(p)" by just "free(p)" - free(NULL) is safe.
---
libc/misc/wordexp/wordexp.c | 30 +++++++++++-------------------
1 file changed, 11 insertions(+), 19 deletions(-)
(limited to 'libc/misc/wordexp')
diff --git a/libc/misc/wordexp/wordexp.c b/libc/misc/wordexp/wordexp.c
index 6872a65ba..45d5a876e 100644
--- a/libc/misc/wordexp/wordexp.c
+++ b/libc/misc/wordexp/wordexp.c
@@ -1076,8 +1076,7 @@ parse_comm(char **word, size_t * word_length, size_t * max_length,
}
/* Premature end */
- if (comm)
- free(comm);
+ free(comm);
return WRDE_SYNTAX;
}
@@ -1370,8 +1369,7 @@ parse_param(char **word, size_t * word_length, size_t * max_length,
&buffer[20]);
*word = w_addstr(*word, word_length, max_length, value);
free(env);
- if (pattern)
- free(pattern);
+ free(pattern);
return *word ? 0 : WRDE_NOSPACE;
}
/* Is it `$*' or `$@' (unquoted) ? */
@@ -1530,8 +1528,7 @@ parse_param(char **word, size_t * word_length, size_t * max_length,
if (free_value)
free(value);
- if (expanded)
- free(expanded);
+ free(expanded);
goto do_error;
}
@@ -1550,8 +1547,7 @@ parse_param(char **word, size_t * word_length, size_t * max_length,
if (free_value)
free(value);
- if (expanded)
- free(expanded);
+ free(expanded);
goto do_error;
}
@@ -1573,8 +1569,7 @@ parse_param(char **word, size_t * word_length, size_t * max_length,
goto no_space;
}
- if (pattern)
- free(pattern);
+ free(pattern);
pattern = expanded;
}
@@ -1723,7 +1718,7 @@ parse_param(char **word, size_t * word_length, size_t * max_length,
/* Substitute parameter */
break;
- if (free_value && value)
+ if (free_value)
free(value);
if (!colon_seen && value)
@@ -1740,7 +1735,7 @@ parse_param(char **word, size_t * word_length, size_t * max_length,
case ACT_NONNULL_SUBST:
if (value && (*value || !colon_seen)) {
- if (free_value && value)
+ if (free_value)
free(value);
value = pattern ? strdup(pattern) : pattern;
@@ -1769,7 +1764,7 @@ parse_param(char **word, size_t * word_length, size_t * max_length,
goto success;
}
- if (free_value && value)
+ if (free_value)
free(value);
value = pattern ? strdup(pattern) : pattern;
@@ -1895,11 +1890,9 @@ parse_param(char **word, size_t * word_length, size_t * max_length,
error = WRDE_SYNTAX;
do_error:
- if (env)
- free(env);
+ free(env);
- if (pattern)
- free(pattern);
+ free(pattern);
return error;
}
@@ -2269,8 +2262,7 @@ int wordexp(const char *words, wordexp_t * we, int flags)
* set we members back to what they were.
*/
- if (word != NULL)
- free(word);
+ free(word);
if (error == WRDE_NOSPACE)
return WRDE_NOSPACE;
--
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