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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: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Roland Dreier 2005-05-25 12:31:30 -07:00 committed by Linus Torvalds
parent e4f50f003d
commit 561e148ea9
1 changed files with 4 additions and 0 deletions
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4
drivers/infiniband/core/user_mad.c
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@ -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) static int ib_umad_close(struct inode *inode, struct file *filp)
{ {
struct ib_umad_file *file = filp->private_data; struct ib_umad_file *file = filp->private_data;
struct ib_umad_packet *packet, *tmp;
int i; int i;
for (i = 0; i < IB_UMAD_MAX_AGENTS; ++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]); ib_unregister_mad_agent(file->agent[i]);
} }
list_for_each_entry_safe(packet, tmp, &file->recv_list, list)
kfree(packet);
kfree(file); kfree(file);
return 0; return 0;