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vvfat fixes for 2.6.0-rc4

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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

vvfat fixes for 2.6.0-rc4

# gpg: Signature made Fri 29 Apr 2016 10:52:13 BST using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"

* remotes/kevin/tags/for-upstream:
  vvfat: Fix default volume label
  vvfat: Fix volume name assertion

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2016-04-29 12:12:33 +01:00
commit 47dac82d8b
1 changed files with 8 additions and 1 deletions
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9
block/vvfat.c
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@ -1109,6 +1109,8 @@ static int vvfat_open(BlockDriverState *bs, QDict *options, int flags,
goto fail;
}
memcpy(s->volume_label, label, label_length);
} else {
memcpy(s->volume_label, "QEMU VVFAT", 10);
}
if (floppy) {
@ -2283,12 +2285,17 @@ DLOG(fprintf(stderr, "commit_direntries for %s, parent_mapping_index %d\n", mapp
factor * (old_cluster_count - new_cluster_count));
for (c = first_cluster; !fat_eof(s, c); c = modified_fat_get(s, c)) {
direntry_t *first_direntry;
void* direntry = array_get(&(s->directory), current_dir_index);
int ret = vvfat_read(s->bs, cluster2sector(s, c), direntry,
s->sectors_per_cluster);
if (ret)
return ret;
assert(!strncmp(s->directory.pointer, "QEMU", 4));
/* The first directory entry on the filesystem is the volume name */
first_direntry = (direntry_t*) s->directory.pointer;
assert(!memcmp(first_direntry->name, s->volume_label, 11));
current_dir_index += factor;
}