[U-Boot] [PATCH 4/4] x86: Do sanity test on pirq table before writing
If pirq_routing_table points to NULL, that means U-Boot fails to generate the table before in create_pirq_routing_table(), so we test it against NULL before actually writing it.
Signed-off-by: Bin Meng bmeng.cn@gmail.com ---
arch/x86/cpu/irq.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/x86/cpu/irq.c b/arch/x86/cpu/irq.c index 32dc6f2..ce6334b 100644 --- a/arch/x86/cpu/irq.c +++ b/arch/x86/cpu/irq.c @@ -217,5 +217,8 @@ void pirq_init(void)
u32 write_pirq_routing_table(u32 addr) { + if (!pirq_routing_table) + return addr; + return copy_pirq_routing_table(addr, pirq_routing_table); }
On 20 May 2015 at 01:55, Bin Meng bmeng.cn@gmail.com wrote:
If pirq_routing_table points to NULL, that means U-Boot fails to generate the table before in create_pirq_routing_table(), so we test it against NULL before actually writing it.
Signed-off-by: Bin Meng bmeng.cn@gmail.com
arch/x86/cpu/irq.c | 3 +++ 1 file changed, 3 insertions(+)
Acked-by: Simon Glass sjg@chromium.org
diff --git a/arch/x86/cpu/irq.c b/arch/x86/cpu/irq.c index 32dc6f2..ce6334b 100644 --- a/arch/x86/cpu/irq.c +++ b/arch/x86/cpu/irq.c @@ -217,5 +217,8 @@ void pirq_init(void)
u32 write_pirq_routing_table(u32 addr) {
if (!pirq_routing_table)return addr;return copy_pirq_routing_table(addr, pirq_routing_table);}
1.8.2.1
participants (2)
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Bin Meng -
Simon Glass