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drm/radeon: fix use after free in ATRM bios reading code.

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Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=45503

Reported-and-Debugged-by: mlambda@gmail.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2012-02-02 15:25:16 +00:00
parent 3f7e363249
commit de47a9cd62
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/radeon/radeon_atpx_handler.c
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@ -59,8 +59,9 @@ static int radeon_atrm_call(acpi_handle atrm_handle, uint8_t *bios,
obj = (union acpi_object *)buffer.pointer;
memcpy(bios+offset, obj->buffer.pointer, obj->buffer.length);
len = obj->buffer.length;
kfree(buffer.pointer);
return obj->buffer.length;
return len;
}
bool radeon_atrm_supported(struct pci_dev *pdev)