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mailbox: hi6220: kzalloc + kcalloc to kzalloc

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Reduce allocations to a single one by using a flexible array member.

Allows using __counted_by for extra runtime analysis.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
This commit is contained in:
Rosen Penev
2026-03-10 17:35:59 -07:00
committed by Jassi Brar
parent f9f0df2319
commit df1de2abf9
1 changed files with 5 additions and 9 deletions
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14
drivers/mailbox/hi6220-mailbox.c
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@@ -79,12 +79,12 @@ struct hi6220_mbox {
/* region for mailbox */
void __iomem *base;
unsigned int chan_num;
struct hi6220_mbox_chan *mchan;
void *irq_map_chan[MBOX_CHAN_MAX];
struct mbox_chan *chan;
struct mbox_controller controller;
unsigned int chan_num;
struct hi6220_mbox_chan mchan[] __counted_by(chan_num);
};
static void mbox_set_state(struct hi6220_mbox *mbox,
@@ -267,16 +267,12 @@ static int hi6220_mbox_probe(struct platform_device *pdev)
struct hi6220_mbox *mbox;
int i, err;
mbox = devm_kzalloc(dev, sizeof(*mbox), GFP_KERNEL);
mbox = devm_kzalloc(dev, struct_size(mbox, mchan, MBOX_CHAN_MAX), GFP_KERNEL);
if (!mbox)
return -ENOMEM;
mbox->dev = dev;
mbox->chan_num = MBOX_CHAN_MAX;
mbox->mchan = devm_kcalloc(dev,
mbox->chan_num, sizeof(*mbox->mchan), GFP_KERNEL);
if (!mbox->mchan)
return -ENOMEM;
mbox->dev = dev;
mbox->chan = devm_kcalloc(dev,
mbox->chan_num, sizeof(*mbox->chan), GFP_KERNEL);