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SubjectRe: [PATCH] staging: bcm2835-camera: Replace open-coded idr with a struct idr.
Date
Dan Carpenter <dan.carpenter@oracle.com> writes:

> On Thu, May 10, 2018 at 04:31:07PM -0700, Eric Anholt wrote:
>> @@ -258,32 +181,40 @@ get_msg_context(struct vchiq_mmal_instance *instance)
>> if (!msg_context)
>> return ERR_PTR(-ENOMEM);
>>
>> - msg_context->instance = instance;
>> - msg_context->handle =
>> - mmal_context_map_create_handle(&instance->context_map,
>> - msg_context,
>> - GFP_KERNEL);
>> + /* Create an ID that will be passed along with our message so
>> + * that when we service the VCHI reply, we can look up what
>> + * message is being replied to.
>> + */
>> + spin_lock(&instance->context_map_lock);
>> + handle = idr_alloc(&instance->context_map, msg_context,
>> + 0, 0, GFP_KERNEL);
>> + spin_unlock(&instance->context_map_lock);
>>
>> - if (!msg_context->handle) {
>> + if (msg_context->handle < 0) {
>
> This should probably be testing:
>
> if (handle < 0) {

That's what Stefan said and was fixed in v2 already.
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