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drbd: Allocation of int_dig_in and int_dig_vv was missing 

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
This commit is contained in:
Philipp Reisner 2011-05-17 10:12:56 +02:00
parent f179d76d76
commit 7aca6c7549
1 changed files with 15 additions and 0 deletions
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15
drivers/block/drbd/drbd_receiver.c
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@ -3004,6 +3004,7 @@ static int receive_protocol(struct drbd_tconn *tconn, struct packet_info *pi)
int p_proto, p_after_sb_0p, p_after_sb_1p, p_after_sb_2p;
int p_discard_my_data, p_two_primaries, cf;
struct net_conf *nc;
void *int_dig_in = NULL, *int_dig_vv = NULL;
p_proto = be32_to_cpu(p->protocol);
p_after_sb_0p = be32_to_cpu(p->after_sb_0p);
@ -3026,6 +3027,8 @@ static int receive_protocol(struct drbd_tconn *tconn, struct packet_info *pi)
integrity_alg[SHARED_SECRET_MAX-1] = 0;
if (integrity_alg[0]) {
int hash_size;
tfm = crypto_alloc_hash(integrity_alg, 0, CRYPTO_ALG_ASYNC);
if (!tfm) {
conn_err(tconn, "peer data-integrity-alg %s not supported\n",
@ -3033,11 +3036,23 @@ static int receive_protocol(struct drbd_tconn *tconn, struct packet_info *pi)
goto disconnect;
}
conn_info(tconn, "peer data-integrity-alg: %s\n", integrity_alg);
hash_size = crypto_hash_digestsize(tfm);
int_dig_in = kmalloc(hash_size, GFP_KERNEL);
int_dig_vv = kmalloc(hash_size, GFP_KERNEL);
if (!(int_dig_in && int_dig_vv)) {
crypto_free_hash(tfm);
goto disconnect;
}
}
if (tconn->peer_integrity_tfm)
crypto_free_hash(tconn->peer_integrity_tfm);
tconn->peer_integrity_tfm = tfm;
kfree(tconn->int_dig_in);
kfree(tconn->int_dig_vv);
tconn->int_dig_in = int_dig_in;
tconn->int_dig_vv = int_dig_vv;
}
clear_bit(CONN_DRY_RUN, &tconn->flags);