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sony-laptop: potential null dereference
In the original code, if "device_enum" was NULL then it would dereference it when it printed the error message. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
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1 changed files with 5 additions and 1 deletions
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@ -1311,7 +1311,11 @@ static void sony_nc_rfkill_setup(struct acpi_device *device)
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}
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}
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device_enum = (union acpi_object *) buffer.pointer;
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device_enum = (union acpi_object *) buffer.pointer;
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if (!device_enum || device_enum->type != ACPI_TYPE_BUFFER) {
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if (!device_enum) {
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pr_err(DRV_PFX "No SN06 return object.");
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goto out_no_enum;
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}
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if (device_enum->type != ACPI_TYPE_BUFFER) {
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pr_err(DRV_PFX "Invalid SN06 return object 0x%.2x\n",
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pr_err(DRV_PFX "Invalid SN06 return object 0x%.2x\n",
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device_enum->type);
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device_enum->type);
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goto out_no_enum;
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goto out_no_enum;
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