diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2014-03-04 15:58:00 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-03-04 15:58:00 +0100 |
| commit | 1c2af4968ea533e875d7cf8d095c084f18164f5d (patch) | |
| tree | f8bb9989ff0a770a1324ed3a44acace3c35de63d /drivers/char | |
| parent | a2fa301fddfcb614568a74317fe9b935dd980045 (diff) | |
| parent | 56041bf920d2937b7cadcb30cb206f0372eee814 (diff) | |
Merge tag 'kvm-for-3.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into kvm-next
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/char/raw.c | 2 | ||||
| -rw-r--r-- | drivers/char/virtio_console.c | 9 |
3 files changed, 5 insertions, 7 deletions
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index fa3243d71c7..1386749b48f 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -499,6 +499,7 @@ config RAW_DRIVER config MAX_RAW_DEVS int "Maximum number of RAW devices to support (1-65536)" depends on RAW_DRIVER + range 1 65536 default "256" help The maximum number of RAW devices that are supported. diff --git a/drivers/char/raw.c b/drivers/char/raw.c index f3223aac4df..6e8d65e9b1d 100644 --- a/drivers/char/raw.c +++ b/drivers/char/raw.c @@ -190,7 +190,7 @@ static int bind_get(int number, dev_t *dev) struct raw_device_data *rawdev; struct block_device *bdev; - if (number <= 0 || number >= MAX_RAW_MINORS) + if (number <= 0 || number >= max_raw_minors) return -EINVAL; rawdev = &raw_devices[number]; diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index feea87cc6b8..6928d094451 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); |