A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 11:41:38 -04:00
Code Issues Projects Releases Packages Wiki Activity

xen/pvcalls: Fix a check in pvcalls_front_remove()

Browse source 
bedata->ref can't be less than zero because it's unsigned.  This affects
certain error paths in probe.  We first set ->ref = -1 and then we set
it to a valid value later.

Fixes: 2196819099 ("xen/pvcalls: connect to the backend")
Signed-off-by: Dan Carpenter <[email protected]>
Reviewed-by: Juergen Gross <[email protected]>
Reviewed-by: Stefano Stabellini <[email protected]>
Signed-off-by: Boris Ostrovsky <[email protected]>
This commit is contained in:
Dan Carpenter 2017-12-05 17:38:54 +03:00 • committed by Boris Ostrovsky
commit 1ab134ca31
1 changed files with 1 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
drivers/xen/pvcalls-front.c
View file

@ -1103,7 +1103,7 @@ static int pvcalls_front_remove(struct xenbus_device *dev)
kfree(map);
}
}
if (bedata->ref >= 0)
if (bedata->ref != -1)
gnttab_end_foreign_access(bedata->ref, 0, 0);
kfree(bedata->ring.sring);
kfree(bedata);