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authorLinus Torvalds <torvalds@linux-foundation.org>2015-09-24 15:37:06 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-24 15:37:06 -0700
commitcc8b8faea417bd264d23fa5d017da52b75bbdf94 (patch)
treea05a4b04e43c84792e1ab277b9ee522fb39b8424 /drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
parentbfbaa60d186d81207e61e7f4337fa442860aef72 (diff)
parentfd03420b5624617a708fb9b13634b41b37c22cfa (diff)
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie: "Most of the GPU drivers people were at XDC last week, so I didn't get much to send, so I let it rollover until this week. Also Alex was away for 3 weeks so amdgpu/radeon got a bit more stuff than usual in one go. I've been trying to figure out some 4.2 issues with i915 still (that are fixed in 4.3, but bisecting ends up in a merge commit). Hopefully next week I or i915 people can work that out" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (46 commits) drm: Allow also control clients to check the drm version drm/vmwgfx: Fix uninitialized return in vmw_kms_helper_dirty() drm/vmwgfx: Fix uninitialized return in vmw_cotable_unbind() drm/layerscape: fix handling fsl_dcu_drm_plane_index result drm/mgag200: Fix driver_load error handling drm/mgag200: Fix error handling paths in fbdev driver drm/qxl: only report first monitor as connected if we have no state drm/radeon: add quirk for MSI R7 370 drm/amdgpu: Sprinkle drm_modeset_lock_all to appease locking checks drm/radeon: Sprinkle drm_modeset_lock_all to appease locking checks drm/amdgpu: sync ce and me with SWITCH_BUFFER(2) drm/amdgpu: integer overflow in amdgpu_mode_dumb_create() drm/amdgpu: info leak in amdgpu_gem_metadata_ioctl() drm/amdgpu: integer overflow in amdgpu_info_ioctl() drm/amdgpu: unwind properly in amdgpu_cs_parser_init() drm/amdgpu: Fix max_vblank_count value for current display engines drm/amdgpu: use kmemdup rather than duplicating its implementation drm/amdgpu: fix UVD suspend and resume for VI APU drm/amdgpu: fix the UVD suspend sequence order drm/amdgpu: make UVD handle checking more strict ...
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 22367939ebf1..8c735f544b66 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -390,7 +390,7 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file
min((size_t)size, sizeof(vram_gtt))) ? -EFAULT : 0;
}
case AMDGPU_INFO_READ_MMR_REG: {
- unsigned n, alloc_size = info->read_mmr_reg.count * 4;
+ unsigned n, alloc_size;
uint32_t *regs;
unsigned se_num = (info->read_mmr_reg.instance >>
AMDGPU_INFO_MMR_SE_INDEX_SHIFT) &
@@ -406,9 +406,10 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file
if (sh_num == AMDGPU_INFO_MMR_SH_INDEX_MASK)
sh_num = 0xffffffff;
- regs = kmalloc(alloc_size, GFP_KERNEL);
+ regs = kmalloc_array(info->read_mmr_reg.count, sizeof(*regs), GFP_KERNEL);
if (!regs)
return -ENOMEM;
+ alloc_size = info->read_mmr_reg.count * sizeof(*regs);
for (i = 0; i < info->read_mmr_reg.count; i++)
if (amdgpu_asic_read_register(adev, se_num, sh_num,