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(parent: 449f14f) | patch
mISDN: prevent possible NULL pointer dereference
authorAnton Protopopov <a.s.protopopov@gmail.com>
Wed, 17 Feb 2016 16:19:56 +0000 (11:19 -0500)
committerDavid S. Miller <davem@davemloft.net>
Thu, 18 Feb 2016 19:59:35 +0000 (14:59 -0500)
commite60b13e4f56fc56cc0dea845ce0711773d514149
treec0f9077bbd5b4eb462d8865d526459335b0c61eftree | snapshot (tar.gz zip)
parent449f14f01f65f45f332e3360aa46b3d3571b2cbacommit | diff
mISDN: prevent possible NULL pointer dereference

A return value of the bchannel_get_rxbuf() function is compared with the
positive ENOMEM value instead of the negative -ENOMEM value to detect a
memory allocation problem. Thus, after a possible memory allocation
failure the bc->bch.rx_skb will be NULL which will lead to a NULL
pointer dereference.

Signed-off-by: Anton Protopopov <a.s.protopopov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/isdn/hardware/mISDN/netjet.c diff | blob | blame | history