Kernel/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-01-19 03:31:25 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Merge branch 'acpi-ec'

Browse Source 
* acpi-ec:
  ACPI / EC: Ensure lock is acquired before accessing ec struct members
This commit is contained in:
Rafael J. Wysocki 2013-11-19 01:06:06 +01:00
commit dcaea2c18e
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/acpi/ec.c
View File

@ -173,9 +173,10 @@ static void start_transaction(struct acpi_ec *ec)
static void advance_transaction(struct acpi_ec *ec, u8 status) static void advance_transaction(struct acpi_ec *ec, u8 status)
{ {
unsigned long flags; unsigned long flags;
struct transaction *t = ec->curr; struct transaction *t;
spin_lock_irqsave(&ec->lock, flags); spin_lock_irqsave(&ec->lock, flags);
t = ec->curr;
if (!t) if (!t)
goto unlock; goto unlock;
if (t->wlen > t->wi) { if (t->wlen > t->wi) {