lkml.org 
[lkml]   [2018]   [May]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] staging: bcm2835-camera: Replace open-coded idr with a struct idr.
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) {

> kfree(msg_context);
> - return ERR_PTR(-ENOMEM);
> + return ERR_PTR(handle);
> }
>
> + msg_context->instance = instance;
> + msg_context->handle = handle;
> +
> return msg_context;
> }
>

\
 
 \ /
  Last update: 2018-05-15 14:06    [W:0.086 / U:0.348 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site