diff options
| author | Michael Hennerich <michael.hennerich@analog.com> | 2008-03-29 00:16:06 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-03-29 00:45:22 +0300 |
| commit | 363df3994f034e7fe87d146fcf19f6a3ab2a2291 (patch) | |
| tree | 43e88e56df7f9649777958128d68682e38776878 /drivers | |
| parent | 7ef9861c7496185e96fb0a3b57ff0b4880876d0a (diff) | |
| download | linux-363df3994f034e7fe87d146fcf19f6a3ab2a2291.tar.xz | |
blackfin video driver: fix bug when opening/reading/mmaping BF54x and BF52x framebuffer simultaneously
http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3974
opening/reading/mmaping BF54x and BF52x framebuffer simultaneously triggers
BUG: failure at mm/nommu.c:470/add_nommu_vma() Add VM_SHARED to the default
vm_flags
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/bf54x-lq043fb.c | 2 | ||||
| -rw-r--r-- | drivers/video/bfin-t350mcqb-fb.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/video/bf54x-lq043fb.c b/drivers/video/bf54x-lq043fb.c index 986a550c0439..eefba3d0e4b9 100644 --- a/drivers/video/bf54x-lq043fb.c +++ b/drivers/video/bf54x-lq043fb.c @@ -384,7 +384,7 @@ static int bfin_bf54x_fb_mmap(struct fb_info *info, struct vm_area_struct *vma) * Other flags can be set, and are documented in * include/linux/mm.h */ - vma->vm_flags |= VM_MAYSHARE; + vma->vm_flags |= VM_MAYSHARE | VM_SHARED; return 0; } diff --git a/drivers/video/bfin-t350mcqb-fb.c b/drivers/video/bfin-t350mcqb-fb.c index f36ca7f6d8a0..135d6dd7e672 100644 --- a/drivers/video/bfin-t350mcqb-fb.c +++ b/drivers/video/bfin-t350mcqb-fb.c @@ -302,7 +302,7 @@ static int bfin_t350mcqb_fb_mmap(struct fb_info *info, struct vm_area_struct *vm * Other flags can be set, and are documented in * include/linux/mm.h */ - vma->vm_flags |= VM_MAYSHARE; + vma->vm_flags |= VM_MAYSHARE | VM_SHARED; return 0; } |