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Merge tag 'reset-fixes-for-v6.2' of git://git.pengutronix.de/pza/linux into arm/fixes

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Reset controller fixes for v6.2

Avoid a build error by disabling the invalid combination of building
reset-ti-sci built-in but ti-sci as a module.
Fix a possible NULL pointer dereference in reset-uniphier-glue in case
platform_get_resource() fails.

* tag 'reset-fixes-for-v6.2' of git://git.pengutronix.de/pza/linux:
  reset: uniphier-glue: Fix possible null-ptr-deref
  reset: ti-sci: honor TI_SCI_PROTOCOL setting when not COMPILE_TEST

Link: https://lore.kernel.org/r/20230104095855.3809733-1-p.zabel@pengutronix.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann
2023-01-09 23:16:08 +01:00
parent 13d159553e 3a2390c677
commit 97bcdf24e0
2 changed files with 2 additions and 4 deletions
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2
drivers/reset/Kconfig
View File

@@ -257,7 +257,7 @@ config RESET_SUNXI
config RESET_TI_SCI
tristate "TI System Control Interface (TI-SCI) reset driver"
depends on TI_SCI_PROTOCOL || COMPILE_TEST
depends on TI_SCI_PROTOCOL || (COMPILE_TEST && TI_SCI_PROTOCOL=n)
help
This enables the reset driver support over TI System Control Interface
available on some new TI's SoCs. If you wish to use reset resources

4
drivers/reset/reset-uniphier-glue.c
View File

@@ -47,7 +47,6 @@ static int uniphier_glue_reset_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct uniphier_glue_reset_priv *priv;
struct resource *res;
resource_size_t size;
int i, ret;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
@@ -60,7 +59,6 @@ static int uniphier_glue_reset_probe(struct platform_device *pdev)
return -EINVAL;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
size = resource_size(res);
priv->rdata.membase = devm_ioremap_resource(dev, res);
if (IS_ERR(priv->rdata.membase))
return PTR_ERR(priv->rdata.membase);
@@ -96,7 +94,7 @@ static int uniphier_glue_reset_probe(struct platform_device *pdev)
spin_lock_init(&priv->rdata.lock);
priv->rdata.rcdev.owner = THIS_MODULE;
priv->rdata.rcdev.nr_resets = size * BITS_PER_BYTE;
priv->rdata.rcdev.nr_resets = resource_size(res) * BITS_PER_BYTE;
priv->rdata.rcdev.ops = &reset_simple_ops;
priv->rdata.rcdev.of_node = dev->of_node;
priv->rdata.active_low = true;