shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-09 04:10:18 +09:00
Code Issues Packages Projects Releases Wiki Activity

arm64: Enable interrupts in the EL0 undef handler

Browse Source 
do_undefinstr() has to be called with interrupts disabled since it may
read the instruction from the user address space which could lead to a
data abort and subsequent might_sleep() warning in do_page_fault().

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
(cherry picked from commit 2600e130b3)
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Catalin Marinas
2013-08-22 11:47:37 +01:00
committed by Mark Brown
parent 3033aae67a
commit 0195e1c67c
1 changed files with 2 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm64/kernel/entry.S
View File

@@ -476,6 +476,8 @@ el0_undef:
* Undefined instruction
*/
mov x0, sp
// enable interrupts before calling the main handler
enable_irq
b do_undefinstr
el0_dbg:
/*