hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[S390] qdio: free indicator after reset is finished 

The qdio device indicator is freed before the device is notified that
the indicator is reset. This sequence contains a race when the freed
indicator is used by a new device while the reset of the indicator is
still pending. Do the reset operation before freeing the indicator to
avoid that potential race.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Jan Glauber 2010-11-25 09:52:46 +01:00 committed by Martin Schwidefsky
parent e8129c6421
commit 4814a2b3c6
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/s390/cio/qdio_thinint.c
View File

@ -292,8 +292,8 @@ void qdio_shutdown_thinint(struct qdio_irq *irq_ptr)
return; return;
/* reset adapter interrupt indicators */ /* reset adapter interrupt indicators */
put_indicator(irq_ptr->dsci);
set_subchannel_ind(irq_ptr, 1); set_subchannel_ind(irq_ptr, 1);
put_indicator(irq_ptr->dsci);
} }
void __exit tiqdio_unregister_thinints(void) void __exit tiqdio_unregister_thinints(void)