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Use NULL instead of 0 for pointers.

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The strchr(3) returns a NULL if the character does not appears in the string.
The malloc will return NULL if cannot allocate memory.
This commit is contained in:
Marcelo Araujo 2016-04-14 12:46:46 +00:00
parent fa02fc2d8f
commit 45be165f23
2 changed files with 3 additions and 3 deletions
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2
usr.sbin/fdread/fdread.c
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@ -170,7 +170,7 @@ doread(int fd, FILE *of, const char *_devname)
secsize = 128 << fdt.secsize;
tracksize = fdt.sectrac * secsize;
mediasize = tracksize * fdt.tracks * fdt.heads;
if ((trackbuf = malloc(tracksize)) == 0)
if ((trackbuf = malloc(tracksize)) == NULL)
errx(EX_TEMPFAIL, "out of memory");
if (!quiet)

4
usr.sbin/fdread/fdutil.c
View File

@ -200,10 +200,10 @@ parse_fmt(const char *s, enum fd_drivetype type,
*out = in;
for (i = 0;; i++) {
if (s == 0)
if (s == NULL)
break;
if ((cp = strchr(s, ',')) == 0) {
if ((cp = strchr(s, ',')) == NULL) {
s1 = strdup(s);
if (s1 == NULL)
abort();