Simplifies allocations slightly.

Add __counted_by for extra runtime analysis.

Signed-off-by: Rosen Penev <[email protected]>
---
 v2: Rebase.
 drivers/platform/x86/intel/plr_tpmi.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/platform/x86/intel/plr_tpmi.c 
b/drivers/platform/x86/intel/plr_tpmi.c
index 8faecc311038..66220fadf670 100644
--- a/drivers/platform/x86/intel/plr_tpmi.c
+++ b/drivers/platform/x86/intel/plr_tpmi.c
@@ -58,11 +58,11 @@ struct tpmi_plr_die {
 
 struct tpmi_plr {
        struct dentry *dbgfs_dir;
-       struct tpmi_plr_die *die_info;
        int num_dies;
        struct auxiliary_device *auxdev;
        struct notifier_block nb;
        struct mutex lock;      /* Protect access to dbgfs_dir */
+       struct tpmi_plr_die die_info[] __counted_by(num_dies);
 };
 
 static const char * const plr_coarse_reasons[] = {
@@ -305,7 +305,7 @@ static int intel_plr_probe(struct auxiliary_device *auxdev, 
const struct auxilia
        if (!num_resources)
                return -EINVAL;
 
-       plr = devm_kzalloc(&auxdev->dev, sizeof(*plr), GFP_KERNEL);
+       plr = devm_kzalloc(&auxdev->dev, struct_size(plr, die_info, 
num_resources), GFP_KERNEL);
        if (!plr)
                return -ENOMEM;
 
@@ -315,13 +315,6 @@ static int intel_plr_probe(struct auxiliary_device 
*auxdev, const struct auxilia
 
        intel_plr_register_notifier(&plr->nb);
 
-       plr->die_info = devm_kcalloc(&auxdev->dev, num_resources, 
sizeof(*plr->die_info),
-                                    GFP_KERNEL);
-       if (!plr->die_info) {
-               err = -ENOMEM;
-               goto err_notify;
-       }
-
        plr->num_dies = num_resources;
        plr->dbgfs_dir = debugfs_create_dir("plr", dentry);
        plr->auxdev = auxdev;
@@ -361,7 +354,6 @@ static int intel_plr_probe(struct auxiliary_device *auxdev, 
const struct auxilia
 
 err:
        debugfs_remove_recursive(plr->dbgfs_dir);
-err_notify:
        intel_plr_unregister_notifier(&plr->nb);
 
        return err;
-- 
2.54.0


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