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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-18 21:27:12 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-18 21:27:12 +0400 |
| commit | 9d265649a86c6c0e4bae164a4c5ce806f0f12fc8 (patch) | |
| tree | a782d3ffe0a171e540fdda19764ab81e11cb1a4c /drivers/char/virtio_console.c | |
| parent | 6d36b6f313738e99fc8b903697f8ecf06add29aa (diff) | |
| parent | 6d0abeca3242a88cab8232e4acd7e2bf088f3bc2 (diff) | |
| download | linux-9d265649a86c6c0e4bae164a4c5ce806f0f12fc8.tar.xz | |
Merge 3.14-rc3 into usb-next
We want the fixes in this branch as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/char/virtio_console.c')
| -rw-r--r-- | drivers/char/virtio_console.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index feea87cc6b8f..6928d094451d 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -890,12 +890,10 @@ static int pipe_to_sg(struct pipe_inode_info *pipe, struct pipe_buffer *buf, } else { /* Failback to copying a page */ struct page *page = alloc_page(GFP_KERNEL); - char *src = buf->ops->map(pipe, buf, 1); - char *dst; + char *src; if (!page) return -ENOMEM; - dst = kmap(page); offset = sd->pos & ~PAGE_MASK; @@ -903,9 +901,8 @@ static int pipe_to_sg(struct pipe_inode_info *pipe, struct pipe_buffer *buf, if (len + offset > PAGE_SIZE) len = PAGE_SIZE - offset; - memcpy(dst + offset, src + buf->offset, len); - - kunmap(page); + src = buf->ops->map(pipe, buf, 1); + memcpy(page_address(page) + offset, src + buf->offset, len); buf->ops->unmap(pipe, buf, src); sg_set_page(&(sgl->sg[sgl->n]), page, len, offset); |