Kernel/linux-next
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git synced 2025-01-01 10:42:11 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

greybus: manifest: check for duplicate CPort descriptors when parsing

Browse Source 
Now that connection creation has been separated from interface
initialisation, we should explicitly check for duplicate CPort
descriptors when parsing the manifest.

Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Johan Hovold 2016-01-21 17:34:10 +01:00 committed by Greg Kroah-Hartman
parent 98fdf5a037
commit d6fba3dbb0
1 changed files with 14 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/staging/greybus/manifest.c
View File

@ -230,8 +230,7 @@ static u32 gb_manifest_parse_cports(struct gb_bundle *bundle)
{
struct gb_interface *intf = bundle->intf;
struct greybus_descriptor_cport *desc_cport;
struct manifest_desc *desc;
struct manifest_desc *next;
struct manifest_desc *desc, *next, *tmp;
LIST_HEAD(list);
u8 bundle_id = bundle->id;
u16 cport_id;
@ -251,7 +250,19 @@ static u32 gb_manifest_parse_cports(struct gb_bundle *bundle)
if (cport_id > CPORT_ID_MAX)
goto exit;
/* Found one, move it to our temporary list. */
/*
* Found one, move it to our temporary list after checking for
* duplicates.
*/
list_for_each_entry(tmp, &list, links) {
desc_cport = tmp->data;
if (cport_id == desc_cport->id) {
dev_err(&bundle->dev,
"duplicate CPort %u found\n",
cport_id);
goto exit;
}
}
list_move(&desc->links, &list);
count++;
}