[automerger] [DO NOT MERGE] Fix signedness mismatch and integer underflow am: ef35553d53
am: 08bd47e9a9
Change-Id: Ie536c5dd8c447cd3753725040edbec7ce478ea07
This commit is contained in:
commit
279cc3d65e
1 changed files with 7 additions and 6 deletions
13
cryptfs.c
13
cryptfs.c
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@ -3380,24 +3380,25 @@ int cryptfs_changepw(int crypt_type, const char *newpw)
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static unsigned int persist_get_max_entries(int encrypted) {
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struct crypt_mnt_ftr crypt_ftr;
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unsigned int dsize;
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unsigned int max_persistent_entries;
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/* If encrypted, use the values from the crypt_ftr, otherwise
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* use the values for the current spec.
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*/
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if (encrypted) {
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if (get_crypt_ftr_and_key(&crypt_ftr)) {
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return -1;
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/* Something is wrong, assume no space for entries */
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return 0;
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}
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dsize = crypt_ftr.persist_data_size;
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} else {
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dsize = CRYPT_PERSIST_DATA_SIZE;
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}
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max_persistent_entries = (dsize - sizeof(struct crypt_persist_data)) /
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sizeof(struct crypt_persist_entry);
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return max_persistent_entries;
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if (dsize > sizeof(struct crypt_persist_data)) {
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return (dsize - sizeof(struct crypt_persist_data)) / sizeof(struct crypt_persist_entry);
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} else {
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return 0;
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}
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}
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static int persist_get_key(const char *fieldname, char *value)
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