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* stdio-common/vfprintf.c (vfprintf): Check malloc return; don't

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call free(NULL).
This commit is contained in:
Paul Pluzhnikov
2013-03-05 13:44:33 -08:00
parent 72a3b700c5
commit cdcf361fda
2 changed files with 19 additions and 5 deletions
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17
stdio-common/vfprintf.c
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@@ -1691,7 +1691,8 @@ do_positional:
/* Just a counter. */
size_t cnt;
free (workstart);
if (__builtin_expect (workstart != NULL, 0))
free (workstart);
workstart = NULL;
if (grouping == (const char *) -1)
@@ -1944,6 +1945,11 @@ do_positional:
{
workstart = (CHAR_T *) malloc ((MAX (prec, width) + 32)
* sizeof (CHAR_T));
if (workstart == NULL)
{
done = -1;
goto all_done;
}
workend = workstart + (MAX (prec, width) + 32);
}
}
@@ -2021,7 +2027,8 @@ do_positional:
break;
}
free (workstart);
if (__builtin_expect (workstart != NULL, 0))
free (workstart);
workstart = NULL;
/* Write the following constant string. */
@@ -2032,8 +2039,10 @@ do_positional:
}
all_done:
free (args_malloced);
free (workstart);
if (__builtin_expect (args_malloced != NULL, 0))
free (args_malloced);
if (__builtin_expect (workstart != NULL, 0))
free (workstart);
/* Unlock the stream. */
_IO_funlockfile (s);
_IO_cleanup_region_end (0);