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imsm: catch posix_memalign allocation failures 

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2008-07-14 13:55:12 -07:00
parent bf5a934aff
commit ad97895ec8
1 changed files with 11 additions and 4 deletions
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15
super-intel.c
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@ -758,7 +758,13 @@ static int load_imsm_mpb(int fd, struct intel_super *super, char *devname)
}
len = 512;
posix_memalign((void**)&anchor, 512, len);
if (posix_memalign((void**)&anchor, 512, len) != 0) {
if (devname)
fprintf(stderr,
Name ": Failed to allocate imsm anchor buffer"
" on %s\n", devname);
return 1;
}
if (read(fd, anchor, len) != len) {
if (devname)
fprintf(stderr,
@ -778,8 +784,7 @@ static int load_imsm_mpb(int fd, struct intel_super *super, char *devname)
mpb_size = __le32_to_cpu(anchor->mpb_size);
mpb_size = ROUND_UP(mpb_size, 512);
posix_memalign((void**)&super->mpb, 512, mpb_size);
if (!super->mpb) {
if (posix_memalign((void**)&super->mpb, 512, mpb_size) != 0) {
if (devname)
fprintf(stderr,
Name ": unable to allocate %zu byte mpb buffer\n",
@ -1267,7 +1272,9 @@ static int store_zero_imsm(struct supertype *st, int fd)
if (lseek64(fd, dsize - (512 * 2), SEEK_SET) < 0)
return 1;
posix_memalign(&buf, 512, 512);
if (posix_memalign(&buf, 512, 512) != 0)
return 1;
memset(buf, 0, sizeof(buf));
if (write(fd, buf, sizeof(buf)) != sizeof(buf))
return 1;