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drm/radeon: Add the missed acpi_put_table() to fix memory leak 

[ Upstream commit 10276a20be ]

When the radeon driver reads the bios information from ACPI
table in radeon_acpi_vfct_bios(), it misses to call acpi_put_table()
to release the ACPI memory after the init, so add acpi_put_table()
properly to fix the memory leak.

v2: fix text formatting (Alex)

Fixes: 268ba0a99f ("drm/radeon: implement ACPI VFCT vbios fetch (v3)")
Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Hanjun Guo 2022-11-04 17:50:02 +08:00 committed by Greg Kroah-Hartman
parent 0544ea57f9
commit 9e203e4373
1 changed files with 11 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/gpu/drm/radeon/radeon_bios.c
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@ -612,13 +612,14 @@ static bool radeon_acpi_vfct_bios(struct radeon_device *rdev)
acpi_size tbl_size;
UEFI_ACPI_VFCT *vfct;
unsigned offset;
bool r = false;
if (!ACPI_SUCCESS(acpi_get_table("VFCT", 1, &hdr)))
return false;
tbl_size = hdr->length;
if (tbl_size < sizeof(UEFI_ACPI_VFCT)) {
DRM_ERROR("ACPI VFCT table present but broken (too short #1)\n");
return false;
goto out;
}
vfct = (UEFI_ACPI_VFCT *)hdr;
@ -631,13 +632,13 @@ static bool radeon_acpi_vfct_bios(struct radeon_device *rdev)
offset += sizeof(VFCT_IMAGE_HEADER);
if (offset > tbl_size) {
DRM_ERROR("ACPI VFCT image header truncated\n");
return false;
goto out;
}
offset += vhdr->ImageLength;
if (offset > tbl_size) {
DRM_ERROR("ACPI VFCT image truncated\n");
return false;
goto out;
}
if (vhdr->ImageLength &&
@ -649,15 +650,18 @@ static bool radeon_acpi_vfct_bios(struct radeon_device *rdev)
rdev->bios = kmemdup(&vbios->VbiosContent,
vhdr->ImageLength,
GFP_KERNEL);
if (rdev->bios)
r = true;
if (!rdev->bios)
return false;
return true;
goto out;
}
}
DRM_ERROR("ACPI VFCT table present but broken (too short #2)\n");
return false;
out:
acpi_put_table(hdr);
return r;
}
#else
static inline bool radeon_acpi_vfct_bios(struct radeon_device *rdev)