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author | Al Viro <viro@zeniv.linux.org.uk> | 2016-01-04 18:25:34 +0300 |
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committer | Al Viro <viro@zeniv.linux.org.uk> | 2016-01-04 18:25:34 +0300 |
commit | 7e935c7ca1e6c398f11edac5beabfc4348e3b3a4 (patch) | |
tree | 86da864ba6341bd86b5f5450c611f918722237b2 /drivers/usb/host/whci/qset.c | |
parent | c62432b40b5e03c25faf2c8f8547bba4908b8945 (diff) | |
parent | e9d408e107db9a554b36c3a79f67b37dd3e16da0 (diff) | |
download | linux-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.c | 4 |
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); |