staging: set msi_domain_ops as __ro_after_init

Marked msi_domain_ops structs as __ro_after_init when called only during init.
This protects the data structure from accidental corruption.

Suggested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jess Frazelle <me@jessfraz.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c b/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c
index 6b1cd574644f80bae411037efecaa9fbb2cdb3d6..0e2c1b5e13b7736d20daea13d18769550b340d77 100644 (file)
--- a/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c
+++ b/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c
@@ -51,7 +51,7 @@ static int its_fsl_mc_msi_prepare(struct irq_domain *msi_domain,
        return msi_info->ops->msi_prepare(msi_domain->parent, dev, nvec, info);
 }
 
-static struct msi_domain_ops its_fsl_mc_msi_ops = {
+static struct msi_domain_ops its_fsl_mc_msi_ops __ro_after_init = {
        .msi_prepare = its_fsl_mc_msi_prepare,
 };