summaryrefslogtreecommitdiff
path: root/drivers/net/wireless/rt2x00/rt2500pci.c
diff options
context:
space:
mode:
authorStanislaw Gruszka <sgruszka@redhat.com>2013-02-13 17:27:05 +0400
committerJohn W. Linville <linville@tuxdriver.com>2013-02-14 23:24:07 +0400
commit4ea545d476d3182056aeb042c439237ed61d261e (patch)
treea216861969701e1f48e64d829caf700966088980 /drivers/net/wireless/rt2x00/rt2500pci.c
parent52301a815e81cdcbcf971ba28df0376dc7f3961c (diff)
downloadlinux-4ea545d476d3182056aeb042c439237ed61d261e.tar.xz
rt2x00: check for dma mappings errors
Check output of dma_map_single functions which nowadays can fail (when IOMMU is used). On write_beacon callbacks just print error, similar like padding error is handled by rt2800_write_beacon. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2500pci.c')
-rw-r--r--drivers/net/wireless/rt2x00/rt2500pci.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index 9bea10f53f0a..39edc59e8d03 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -1338,7 +1338,10 @@ static void rt2500pci_write_beacon(struct queue_entry *entry,
rt2x00_set_field32(&reg, CSR14_BEACON_GEN, 0);
rt2x00pci_register_write(rt2x00dev, CSR14, reg);
- rt2x00queue_map_txskb(entry);
+ if (rt2x00queue_map_txskb(entry)) {
+ ERROR(rt2x00dev, "Fail to map beacon, aborting\n");
+ goto out;
+ }
/*
* Write the TX descriptor for the beacon.
@@ -1349,7 +1352,7 @@ static void rt2500pci_write_beacon(struct queue_entry *entry,
* Dump beacon to userspace through debugfs.
*/
rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_BEACON, entry->skb);
-
+out:
/*
* Enable beaconing again.
*/