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authorMichael Thalmeier <michael.thalmeier@hale.at>2016-04-21 16:43:52 +0200
committerSamuel Ortiz <sameo@linux.intel.com>2016-05-10 00:01:16 +0200
commitc952f915ce8567120ffdf12998ad0c945fbc93ac (patch)
tree6519e34422b2ad22b7e562f487c3f0c696ee3c70 /drivers/nfc
parent30f98489f54e027001cc9b27c59840975871de65 (diff)
downloadlinux-c952f915ce8567120ffdf12998ad0c945fbc93ac.tar.bz2
NFC: pn533: reset poll modulation list before calling targets_found
We need to reset the poll modulation list before calling nfc_targets_found because otherwise userspace could run before the modulation list is cleared and then get a "Cannot activate target while polling" error upon calling activate_target. Signed-off-by: Michael Thalmeier <michael.thalmeier@hale.at> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/nfc')
-rw-r--r--drivers/nfc/pn533/pn533.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/nfc/pn533/pn533.c b/drivers/nfc/pn533/pn533.c
index d82eecd8daad..745181ea693b 100644
--- a/drivers/nfc/pn533/pn533.c
+++ b/drivers/nfc/pn533/pn533.c
@@ -865,6 +865,7 @@ static int pn533_target_found_type_b(struct nfc_target *nfc_tgt, u8 *tgt_data,
return 0;
}
+static void pn533_poll_reset_mod_list(struct pn533 *dev);
static int pn533_target_found(struct pn533 *dev, u8 tg, u8 *tgdata,
int tgdata_len)
{
@@ -914,6 +915,7 @@ static int pn533_target_found(struct pn533 *dev, u8 tg, u8 *tgdata,
dev->tgt_available_prots = nfc_tgt.supported_protocols;
+ pn533_poll_reset_mod_list(dev);
nfc_targets_found(dev->nfc_dev, &nfc_tgt, 1);
return 0;
@@ -980,10 +982,8 @@ static int pn533_start_poll_complete(struct pn533 *dev, struct sk_buff *resp)
rc = pn533_target_found(dev, tg, tgdata, tgdata_len);
/* We must stop the poll after a valid target found */
- if (rc == 0) {
- pn533_poll_reset_mod_list(dev);
+ if (rc == 0)
return 0;
- }
}
return -EAGAIN;