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crypto: bcm - use of_device_get_match_data

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The usage of of_device_get_match_data reduce the code size a bit.
Furthermore, it prevents an improbable dereference when
of_match_device() return NULL.

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Corentin LABBE 2017-09-20 20:47:26 +02:00 committed by Herbert Xu
parent 7d55693152
commit d9fa482e59
1 changed files with 2 additions and 5 deletions
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7
drivers/crypto/bcm/cipher.c
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@ -4809,7 +4809,6 @@ static int spu_dt_read(struct platform_device *pdev)
struct device *dev = &pdev->dev; struct device *dev = &pdev->dev;
struct spu_hw *spu = &iproc_priv.spu; struct spu_hw *spu = &iproc_priv.spu;
struct resource *spu_ctrl_regs; struct resource *spu_ctrl_regs;
const struct of_device_id *match;
const struct spu_type_subtype *matched_spu_type; const struct spu_type_subtype *matched_spu_type;
struct device_node *dn = pdev->dev.of_node; struct device_node *dn = pdev->dev.of_node;
int err, i; int err, i;
@ -4817,14 +4816,12 @@ static int spu_dt_read(struct platform_device *pdev)
/* Count number of mailbox channels */ /* Count number of mailbox channels */
spu->num_chan = of_count_phandle_with_args(dn, "mboxes", "#mbox-cells"); spu->num_chan = of_count_phandle_with_args(dn, "mboxes", "#mbox-cells");
match = of_match_device(of_match_ptr(bcm_spu_dt_ids), dev); matched_spu_type = of_device_get_match_data(dev);
if (!match) { if (!matched_spu_type) {
dev_err(&pdev->dev, "Failed to match device\n"); dev_err(&pdev->dev, "Failed to match device\n");
return -ENODEV; return -ENODEV;
} }
matched_spu_type = match->data;
spu->spu_type = matched_spu_type->type; spu->spu_type = matched_spu_type->type;
spu->spu_subtype = matched_spu_type->subtype; spu->spu_subtype = matched_spu_type->subtype;