github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-09-23 13:14:02 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

i3c: Make dev->desc locking assumptions explicit

Browse Source 
i3c_device_get_info() takes the bus normal-use lock before accessing
dev->desc. Under that lock, the descriptor pointer is guaranteed to be
valid for the duration of the access.

Remove the unnecessary NULL check on dev->desc so the code more clearly
reflects the locking rules and expected descriptor lifetime.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Mukesh Savaliya <mukesh.savaliya@oss.qualcomm.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260807145638.168865-6-adrian.hunter@intel.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
Adrian Hunter 2026-08-07 17:56:29 +03:00 committed by Alexandre Belloni
parent feb0ed7660
commit 4083d192f6
1 changed files with 1 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/i3c/device.c
View File

@ -101,8 +101,7 @@ void i3c_device_get_info(const struct i3c_device *dev,
return;
i3c_bus_normaluse_lock(dev->bus);
if (dev->desc)
*info = dev->desc->info;
*info = dev->desc->info;
i3c_bus_normaluse_unlock(dev->bus);
}
EXPORT_SYMBOL_GPL(i3c_device_get_info);