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kconfig: add xrealloc() helper

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We already have xmalloc(), xcalloc().  Add xrealloc() as well
to save tedious error handling.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Masahiro Yamada 2018-02-09 01:19:07 +09:00
parent 9e3e10c725
commit d717f24d8c
6 changed files with 16 additions and 5 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

2
scripts/kconfig/confdata.c
View file

@ -201,7 +201,7 @@ static int add_byte(int c, char **lineptr, size_t slen, size_t *n)
if (new_size > *n) {
new_size += LINE_GROWTH - 1;
new_size *= 2;
nline = realloc(*lineptr, new_size);
nline = xrealloc(*lineptr, new_size);
if (!nline)
return -1;

1
scripts/kconfig/lkc.h
View file

@ -114,6 +114,7 @@ struct file *file_lookup(const char *name);
int file_write_dep(const char *name);
void *xmalloc(size_t size);
void *xcalloc(size_t nmemb, size_t size);
void *xrealloc(void *p, size_t size);
struct gstr {
size_t len;

3
scripts/kconfig/nconf.gui.c
View file

@ -6,6 +6,7 @@
*
*/
#include "nconf.h"
#include "lkc.h"
/* a list of all the different widgets we use */
attributes_t attributes[ATTR_MAX+1] = {0};
@ -374,7 +375,7 @@ int dialog_inputbox(WINDOW *main_window,
if (strlen(init)+1 > *result_len) {
*result_len = strlen(init)+1;
*resultp = result = realloc(result, *result_len);
*resultp = result = xrealloc(result, *result_len);
}
/* find the widest line of msg: */

2
scripts/kconfig/symbol.c
View file

@ -936,7 +936,7 @@ const char *sym_expand_string_value(const char *in)
newlen = strlen(res) + strlen(symval) + strlen(src) + 1;
if (newlen > reslen) {
reslen = newlen;
res = realloc(res, reslen);
res = xrealloc(res, reslen);
}
strcat(res, symval);

11
scripts/kconfig/util.c
View file

@ -104,7 +104,7 @@ void str_append(struct gstr *gs, const char *s)
if (s) {
l = strlen(gs->s) + strlen(s) + 1;
if (l > gs->len) {
gs->s = realloc(gs->s, l);
gs->s = xrealloc(gs->s, l);
gs->len = l;
}
strcat(gs->s, s);
@ -145,3 +145,12 @@ void *xcalloc(size_t nmemb, size_t size)
fprintf(stderr, "Out of memory.\n");
exit(1);
}
void *xrealloc(void *p, size_t size)
{
p = realloc(p, size);
if (p)
return p;
fprintf(stderr, "Out of memory.\n");
exit(1);
}

2
scripts/kconfig/zconf.l
View file

@ -52,7 +52,7 @@ static void append_string(const char *str, int size)
if (new_size > text_asize) {
new_size += START_STRSIZE - 1;
new_size &= -START_STRSIZE;
text = realloc(text, new_size);
text = xrealloc(text, new_size);
text_asize = new_size;
}
memcpy(text + text_size, str, size);