mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-04 18:09:57 +00:00
usb: host: xhci-mem: allocate zeroed Scratchpad Buffer
According to xHCI ch4.20 Scratchpad Buffers, the Scratchpad Buffer needs to be zeroed. ... The following operations take place to allocate Scratchpad Buffers to the xHC: ... b. Software clears the Scratchpad Buffer to '0' Cc: stable <stable@vger.kernel.org> Signed-off-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
a0c16630d3
commit
7480d912d5
1 changed files with 1 additions and 1 deletions
|
@ -1724,7 +1724,7 @@ static int scratchpad_alloc(struct xhci_hcd *xhci, gfp_t flags)
|
|||
xhci->dcbaa->dev_context_ptrs[0] = cpu_to_le64(xhci->scratchpad->sp_dma);
|
||||
for (i = 0; i < num_sp; i++) {
|
||||
dma_addr_t dma;
|
||||
void *buf = dma_alloc_coherent(dev, xhci->page_size, &dma,
|
||||
void *buf = dma_zalloc_coherent(dev, xhci->page_size, &dma,
|
||||
flags);
|
||||
if (!buf)
|
||||
goto fail_sp4;
|
||||
|
|
Loading…
Reference in a new issue