linux_dsm_epyc7002/drivers/vme
Jia-Ju Bai 97784615ed vme: Fix a possible sleep-in-atomic bug in vme_tsi148
The driver may sleep under a spinlock.
The function call path is:
tsi148_master_write \ tsi148_master_read (acquire the spinlock)
  vme_register_error_handler
    kmalloc(GFP_KERNEL) --> may sleep

To fix it, GFP_KERNEL is replaced with GFP_ATOMIC.

This bug is found by my static analysis tool(DSAC) and checked by my code review.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-18 15:59:18 +01:00
..
boards vme: remove DEFINE_PCI_DEVICE_TABLE macro 2013-12-03 11:15:58 -08:00
bridges vme: tsi148: Adjust 14 checks for null pointers 2017-10-13 21:32:04 +01:00
Kconfig vme: Convert VME core to register as a subsystem 2013-12-17 17:06:19 -08:00
Makefile Staging: VME: move VME drivers out of staging 2012-04-26 12:34:58 -07:00
vme_bridge.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vme.c vme: Fix a possible sleep-in-atomic bug in vme_tsi148 2017-12-18 15:59:18 +01:00