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authorAl Viro <viro@zeniv.linux.org.uk>2016-01-04 18:25:34 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2016-01-04 18:25:34 +0300
commit7e935c7ca1e6c398f11edac5beabfc4348e3b3a4 (patch)
tree86da864ba6341bd86b5f5450c611f918722237b2 /drivers/usb/host/whci/qset.c
parentc62432b40b5e03c25faf2c8f8547bba4908b8945 (diff)
parente9d408e107db9a554b36c3a79f67b37dd3e16da0 (diff)
downloadlinux-7e935c7ca1e6c398f11edac5beabfc4348e3b3a4.tar.xz
Merge branch 'memdup_user_nul' into work.misc
Diffstat (limited to 'drivers/usb/host/whci/qset.c')
-rw-r--r--drivers/usb/host/whci/qset.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/host/whci/qset.c b/drivers/usb/host/whci/qset.c
index dc31c425ce01..9f1c0538b211 100644
--- a/drivers/usb/host/whci/qset.c
+++ b/drivers/usb/host/whci/qset.c
@@ -377,6 +377,10 @@ static int qset_fill_page_list(struct whc *whc, struct whc_std *std, gfp_t mem_f
if (std->pl_virt == NULL)
return -ENOMEM;
std->dma_addr = dma_map_single(whc->wusbhc.dev, std->pl_virt, pl_len, DMA_TO_DEVICE);
+ if (dma_mapping_error(whc->wusbhc.dev, std->dma_addr)) {
+ kfree(std->pl_virt);
+ return -EFAULT;
+ }
for (p = 0; p < std->num_pointers; p++) {
std->pl_virt[p].buf_ptr = cpu_to_le64(dma_addr);