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[automerger] [DO NOT MERGE] Fix signedness mismatch and integer underflow am: ef35553d53

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Change-Id: I094ac59296a118fbacc70b4ead1230b4d8683fa2
This commit is contained in:
Android Build Merger (Role) 2018-10-10 10:26:02 +00:00
commit 08bd47e9a9
1 changed files with 7 additions and 6 deletions
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13
cryptfs.c
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@ -3380,24 +3380,25 @@ int cryptfs_changepw(int crypt_type, const char *newpw)
static unsigned int persist_get_max_entries(int encrypted) {
struct crypt_mnt_ftr crypt_ftr;
unsigned int dsize;
unsigned int max_persistent_entries;
/* If encrypted, use the values from the crypt_ftr, otherwise
* use the values for the current spec.
*/
if (encrypted) {
if (get_crypt_ftr_and_key(&crypt_ftr)) {
return -1;
/* Something is wrong, assume no space for entries */
return 0;
}
dsize = crypt_ftr.persist_data_size;
} else {
dsize = CRYPT_PERSIST_DATA_SIZE;
}
max_persistent_entries = (dsize - sizeof(struct crypt_persist_data)) /
sizeof(struct crypt_persist_entry);
return max_persistent_entries;
if (dsize > sizeof(struct crypt_persist_data)) {
return (dsize - sizeof(struct crypt_persist_data)) / sizeof(struct crypt_persist_entry);
} else {
return 0;
}
}
static int persist_get_key(const char *fieldname, char *value)