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authorWaldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>2012-10-11 16:04:00 +0400
committerSamuel Ortiz <sameo@linux.intel.com>2012-11-20 03:09:26 +0400
commit70418e6efcf4f8652cc08e3f2ab8ae35f0948fd9 (patch)
tree68f02c2d54409ab028336ed6acb2922297f188ac /drivers/nfc
parent770f750bc2b8312489c8e45306f551d08a319d3c (diff)
downloadlinux-70418e6efcf4f8652cc08e3f2ab8ae35f0948fd9.tar.xz
NFC: pn533: Fix mem leak in pn533_in_dep_link_up
cmd is allocated in pn533_dep_link_up and passed as an arg to pn533_send_cmd_frame_async together with a complete cb. arg is passed to the cb and must be kfreed there. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/nfc')
-rw-r--r--drivers/nfc/pn533.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c
index 84a2e77ab5de..807bbb8e82d9 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533.c
@@ -1679,11 +1679,14 @@ static void pn533_deactivate_target(struct nfc_dev *nfc_dev,
static int pn533_in_dep_link_up_complete(struct pn533 *dev, void *arg,
u8 *params, int params_len)
{
- struct pn533_cmd_jump_dep *cmd;
struct pn533_cmd_jump_dep_response *resp;
struct nfc_target nfc_target;
u8 target_gt_len;
int rc;
+ struct pn533_cmd_jump_dep *cmd = (struct pn533_cmd_jump_dep *)arg;
+ u8 active = cmd->active;
+
+ kfree(arg);
if (params_len == -ENOENT) {
nfc_dev_dbg(&dev->interface->dev, "");
@@ -1705,7 +1708,6 @@ static int pn533_in_dep_link_up_complete(struct pn533 *dev, void *arg,
}
resp = (struct pn533_cmd_jump_dep_response *) params;
- cmd = (struct pn533_cmd_jump_dep *) arg;
rc = resp->status & PN533_CMD_RET_MASK;
if (rc != PN533_CMD_RET_SUCCESS) {
nfc_dev_err(&dev->interface->dev,
@@ -1735,7 +1737,7 @@ static int pn533_in_dep_link_up_complete(struct pn533 *dev, void *arg,
if (rc == 0)
rc = nfc_dep_link_is_up(dev->nfc_dev,
dev->nfc_dev->targets[0].idx,
- !cmd->active, NFC_RF_INITIATOR);
+ !active, NFC_RF_INITIATOR);
return 0;
}