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Commit 561e148e authored by Roland Dreier's avatar Roland Dreier Committed by Linus Torvalds
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[PATCH] IB: fix potential ib_umad leak 



Free all unclaimed MAD receive buffers when userspace closes our file so we
don't leak memory.

Signed-off-by: default avatarRoland Dreier <roland@topspin.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent e4f50f00

drivers/infiniband/core/user_mad.c

+4 −0
Original line number Diff line number Diff line
@@ -499,6 +499,7 @@ static int ib_umad_open(struct inode *inode, struct file *filp) 
static int ib_umad_close(struct inode *inode, struct file *filp)

{

	struct ib_umad_file *file = filp->private_data;

	struct ib_umad_packet *packet, *tmp;

	int i;



	for (i = 0; i < IB_UMAD_MAX_AGENTS; ++i)
@@ -507,6 +508,9 @@ static int ib_umad_close(struct inode *inode, struct file *filp) 
			ib_unregister_mad_agent(file->agent[i]);

		}



	list_for_each_entry_safe(packet, tmp, &file->recv_list, list)

		kfree(packet);



	kfree(file);



	return 0;