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| author |   Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-06-02 09:54:12 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-06-02 09:54:12 +0200 |
| commit | 5599617ec0719dba3b1f85a4abca2a6c93368ae3 (patch) | |
| tree | 7d2f9bb6a538ee8ed5cfa391f2cfa72a3e2daa9f /drivers/usb/core/buffer.c | |
| parent | drm/i915/skl+: Use scaling amount for plane data rate calculation (v4) (diff) | |
| parent | Merge branch 'drm-intel-next' of git://anongit.freedesktop.org/drm-intel into drm-next (diff) | |
| download | linux-rng-5599617ec0719dba3b1f85a4abca2a6c93368ae3.tar.xz linux-rng-5599617ec0719dba3b1f85a4abca2a6c93368ae3.zip | |
Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued
Git got absolutely destroyed with all our cherry-picking from
drm-intel-next-queued to various branches. It ended up inserting
intel_crtc_page_flip 2x even in intel_display.c.
Backmerge to get back to sanity.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'drivers/usb/core/buffer.c')
| -rw-r--r-- | drivers/usb/core/buffer.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/core/buffer.c b/drivers/usb/core/buffer.c index 2741566ee4f2..98e39f91723a 100644 --- a/drivers/usb/core/buffer.c +++ b/drivers/usb/core/buffer.c @@ -122,6 +122,9 @@ void *hcd_buffer_alloc( struct usb_hcd *hcd = bus_to_hcd(bus); int i; + if (size == 0) + return NULL; + /* some USB hosts just use PIO */ if (!IS_ENABLED(CONFIG_HAS_DMA) || (!bus->controller->dma_mask && |