Re: [PATCH] drm/rockchip: Don't allow zero sized gem buffer

2017-05-26 Thread Sean Paul
On Fri, May 26, 2017 at 10:30:09AM +0800, jeffy wrote: > Hi sean, > > On 05/25/2017 11:30 PM, Sean Paul wrote: > > On Tue, May 23, 2017 at 02:39:43PM +0800, Jeffy Chen wrote: > > > The system would crash when trying to alloc zero sized gem buffer: > > > [6.712435] Unable to handle kernel NULL

Re: [PATCH] drm/rockchip: Don't allow zero sized gem buffer

2017-05-26 Thread Daniel Vetter
On Fri, May 26, 2017 at 7:52 AM, Christoph Hellwig wrote: > On Fri, May 26, 2017 at 10:30:09AM +0800, jeffy wrote: >> Hi sean, >> >> On 05/25/2017 11:30 PM, Sean Paul wrote: >> > On Tue, May 23, 2017 at 02:39:43PM +0800, Jeffy Chen wrote: >> > > The system would crash when

Re: [PATCH] drm/rockchip: Don't allow zero sized gem buffer

2017-05-25 Thread Christoph Hellwig
On Fri, May 26, 2017 at 10:30:09AM +0800, jeffy wrote: > Hi sean, > > On 05/25/2017 11:30 PM, Sean Paul wrote: > > On Tue, May 23, 2017 at 02:39:43PM +0800, Jeffy Chen wrote: > > > The system would crash when trying to alloc zero sized gem buffer: > > > [6.712435] Unable to handle kernel NULL

Re: [PATCH] drm/rockchip: Don't allow zero sized gem buffer

2017-05-25 Thread jeffy
Hi sean, On 05/25/2017 11:30 PM, Sean Paul wrote: On Tue, May 23, 2017 at 02:39:43PM +0800, Jeffy Chen wrote: The system would crash when trying to alloc zero sized gem buffer: [6.712435] Unable to handle kernel NULL pointer dereference at virtual address 0010 <--ZERO_SIZE_PTR ... [

Re: [PATCH] drm/rockchip: Don't allow zero sized gem buffer

2017-05-25 Thread Sean Paul
On Tue, May 23, 2017 at 02:39:43PM +0800, Jeffy Chen wrote: > The system would crash when trying to alloc zero sized gem buffer: > [6.712435] Unable to handle kernel NULL pointer dereference at virtual > address 0010 <--ZERO_SIZE_PTR > ... > [6.757502] PC is at

[PATCH] drm/rockchip: Don't allow zero sized gem buffer

2017-05-23 Thread Jeffy Chen
The system would crash when trying to alloc zero sized gem buffer: [6.712435] Unable to handle kernel NULL pointer dereference at virtual address 0010 <--ZERO_SIZE_PTR ... [6.757502] PC is at sg_alloc_table_from_pages+0x170/0x1ec Signed-off-by: Jeffy Chen