openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

PCI/AER: Queue one GHES event, not several uninitialized ones 

ecae65e133 ("PCI/AER: Use kfifo_in_spinlocked() to insert locked
elements") replaced kfifo_put() with kfifo_in_spinlocked(), but passed the
*size* of the queue entry, where kfifo_in_spinlocked() expects the *number*
of entries to be copied.

We want to insert only one element into kfifo, not "sizeof(entry) = 16".
Without this patch, we would get 15 uninitialized elements.

Fixes: ecae65e133 ("PCI/AER: Use kfifo_in_spinlocked() to insert locked elements")
Signed-off-by: Yanjiang Jin <yanjiang.jin@hxt-semitech.com>
[bhelgaas: changelog]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
This commit is contained in:
Yanjiang Jin 2018-12-14 11:29:37 -06:00 committed by Bjorn Helgaas
parent b07b864ee4
commit 1063a5148a
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/pci/pcie/aer.c
View File

@ -1064,7 +1064,7 @@ void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn,
.regs = aer_regs,
};
if (kfifo_in_spinlocked(&aer_recover_ring, &entry, sizeof(entry),
if (kfifo_in_spinlocked(&aer_recover_ring, &entry, 1,
&aer_recover_ring_lock))
schedule_work(&aer_recover_work);
else