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| author | Bin Meng <bmeng.cn@gmail.com> | 2015-05-25 22:35:07 +0800 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-06-04 02:39:39 -0600 |
| commit | 67b24970cef90b6d230e370cce9db8c29b2f4d74 (patch) | |
| tree | c653792200965525d251f682268ae79335f61df0 /arch/x86/cpu | |
| parent | 05b98ec3468547057666dd685b2a1615298c24cc (diff) | |
| download | u-boot-imx-67b24970cef90b6d230e370cce9db8c29b2f4d74.zip u-boot-imx-67b24970cef90b6d230e370cce9db8c29b2f4d74.tar.gz u-boot-imx-67b24970cef90b6d230e370cce9db8c29b2f4d74.tar.bz2 | |
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>
Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch/x86/cpu')
| -rw-r--r-- | arch/x86/cpu/irq.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/cpu/irq.c b/arch/x86/cpu/irq.c index d1711af..74b89ad 100644 --- a/arch/x86/cpu/irq.c +++ b/arch/x86/cpu/irq.c @@ -209,5 +209,8 @@ 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); } |