Commit a9474646 authored Feb 09, 2006 by Hidetoshi Seto Committed by Tony Luck Feb 09, 2006

[IA64] mca_drv: Add minstate validation



MCA driver can cause panic if kernel gets a state info with no minstate.
This patch adds minstate validation before handling it.

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

parent 1ff0be15

arch/ia64/kernel/mca_drv.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -437,6 +437,9 @@ recover_from_read_error(slidx_table_t *slidx,
		* the process not have any locks of kernel.
		*/

		/* Is minstate valid? */
		if (!peidx_bottom(peidx) \|\| !(peidx_bottom(peidx)->valid.minstate))
		return 0;
		psr1 =(struct ia64_psr *)&(peidx_minstate_area(peidx)->pmsa_ipsr);

		/*