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authorDan Carpenter <dan.carpenter@oracle.com>2013-11-28 01:18:47 +0300
committerBen Skeggs <bskeggs@redhat.com>2013-12-03 23:28:58 +1000
commitbdefc8cbdfc71ea73e0573dbd2d24c0a68232218 (patch)
tree609894300c8209eb918066d13c8d5162168e88e7
parent13cd1a5511eb44a54187d91d4929a6592787a48b (diff)
downloadmfd-fixes-bdefc8cbdfc71ea73e0573dbd2d24c0a68232218.tar.gz
drm/nv50/disp: min/max are reversed in nv50_crtc_gamma_set()
We should be taking the minimum here instead of the max. It could lead to a buffer overflow. Fixes: 438d99e3b175 ('drm/nvd0/disp: initial crtc object implementation') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> a/drm/nv50_display.c b/drm/nv50_display.c index f8e66c08b11a..4e384a2f99c3 100644
-rw-r--r--drivers/gpu/drm/nouveau/nv50_display.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c
index f8e66c08b11a2..4e384a2f99c36 100644
--- a/drivers/gpu/drm/nouveau/nv50_display.c
+++ b/drivers/gpu/drm/nouveau/nv50_display.c
@@ -1265,7 +1265,7 @@ nv50_crtc_gamma_set(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
uint32_t start, uint32_t size)
{
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
- u32 end = max(start + size, (u32)256);
+ u32 end = min_t(u32, start + size, 256);
u32 i;
for (i = start; i < end; i++) {